{"id":21139,"date":"2025-12-30T06:36:43","date_gmt":"2025-12-30T06:36:43","guid":{"rendered":"https:\/\/nkmceramic.com\/?p=21139"},"modified":"2026-02-25T08:01:34","modified_gmt":"2026-02-25T08:01:34","slug":"which-ceramic-have-the-highest-hardness","status":"publish","type":"post","link":"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/","title":{"rendered":"Which Ceramics Have the Highest Hardness? &#8211; A Guide to Selecting Industrial-Grade Wear-Resistant Ceramics"},"content":{"rendered":"<p>Traditional metal materials fail quickly when facing erosion, extreme pressure, or highly abrasive media. High-hardness ceramics have become important\u00a0to industrial upgrades.\u00a0But which ceramic is actually the hardest? What are the differences between ceramics with different hardness levels? This article will provide an analysis of the hardness rankings and application of mainstream advanced ceramics. The article will\u00a0help you in choosing\u00a0the right wear-resistant ceramic materials for your requirements.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/1-Application-of-NKM-Silicon-Carbide-Wear-Resistant-Nozzles.jpg\" alt=\"Application of NKM Silicon Carbide Wear-Resistant Nozzles\" width=\"1280\" height=\"720\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/1-Application-of-NKM-Silicon-Carbide-Wear-Resistant-Nozzles.jpg\" alt=\"Application of NKM Silicon Carbide Wear-Resistant Nozzles\" width=\"1280\" height=\"720\" \/><\/noscript><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#Key_Metrics_for_Measuring_Ceramic_Hardness\" >Key Metrics for Measuring Ceramic Hardness<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#Comparison_of_Representative_Industrial_High-Hardness_Ceramics\" >Comparison of Representative Industrial High-Hardness Ceramics<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#Alumina_Ceramics_Economical_Wear-Resistant_Solution\" >Alumina Ceramics:\u00a0Economical Wear-Resistant Solution<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#Silicon_Nitride_Ceramics_with_Well-Balanced_Performance\" >Silicon Nitride Ceramics with Well-Balanced Performance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#Silicon_Carbide_Ceramics_for_Harsh_Wear_Conditions\" >Silicon Carbide Ceramics for Harsh Wear Conditions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#Boron_Carbide_Ceramics_with_Extreme_Hardness_Specialty_Choice\" >Boron Carbide Ceramics\u00a0with Extreme Hardness:\u00a0Specialty Choice<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#Why_Should_be_Cautious_with_Higher_Hardness_Materials\" >Why Should be Cautious with Higher Hardness Materials?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#How_to_Choose_the_Right_Solution_Based_on_Hardness_Needs\" >How to Choose the Right Solution Based on Hardness Needs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/nkmceramic.com\/pt\/which-ceramic-have-the-highest-hardness\/#Reference\" >Reference<\/a><\/li><\/ul><\/nav><\/div>\n\n<h2><span class=\"ez-toc-section\" id=\"Key_Metrics_for_Measuring_Ceramic_Hardness\"><\/span><strong><b>Key Metrics for Measuring Ceramic Hardness<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In the advanced ceramics\u00a0field, we primarily refer to two values.<\/p>\n<p>The first one is <strong><b>Vickers Hardness (HV)<\/b><\/strong>.\u00a0This is the most accurate standard in the industry. It is measured using a precision diamond indenter. A higher value means the material has a stronger ability to resist local plastic deformation.<\/p>\n<p>Another is <strong><b>Mohs Hardness<\/b><\/strong>.\u00a0The Mohs scale is relatively simple, ranging from 1 to 10. Diamond is the highest,\u00a0at level 10. The Mohs hardness of high-performance industrial ceramics is usually concentrated at level 9 or above.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Comparison_of_Representative_Industrial_High-Hardness_Ceramics\"><\/span><strong><b>Comparison of Representative Industrial High-Hardness Ceramics<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Alumina, silicon nitride, silicon carbide, and boron carbide make up the first tier of high-hardness materials. The table below summarizes the hardness of these ceramic materials.<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"38.8800%\"><strong><b>Material Name<\/b><\/strong><\/td>\n<td width=\"30.5200%\"><strong><b>Vickers Hardness (GPa)<\/b><\/strong><\/td>\n<td width=\"30.5600%\"><strong><b>Mohs Hardness<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"38.8800%\"><strong><b>Alumina (Al<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>O<\/b><\/strong><strong><sub><b>3<\/b><\/sub><\/strong><strong><b>)<\/b><\/strong><\/td>\n<td width=\"30.5200%\">15 &#8211; 18<\/td>\n<td width=\"30.5600%\">9<\/td>\n<\/tr>\n<tr>\n<td width=\"38.8800%\"><strong><b>Silicon Nitride (Si<\/b><\/strong><strong><sub><b>3<\/b><\/sub><\/strong><strong><b>N<\/b><\/strong><strong><sub><b>4<\/b><\/sub><\/strong><strong><b>)<\/b><\/strong><\/td>\n<td width=\"30.5200%\">18 &#8211; 22<\/td>\n<td width=\"30.5600%\">9<\/td>\n<\/tr>\n<tr>\n<td width=\"38.8800%\"><strong><b>Silicon Carbide (SiC)<\/b><\/strong><\/td>\n<td width=\"30.5200%\">22 &#8211; 28<\/td>\n<td width=\"30.5600%\">9.5<\/td>\n<\/tr>\n<tr>\n<td width=\"38.8800%\"><strong><b>Boron Carbide (B<\/b><\/strong><strong><sub><b>4<\/b><\/sub><\/strong><strong><b>C)<\/b><\/strong><\/td>\n<td width=\"30.5200%\">30 &#8211; 35<\/td>\n<td width=\"30.5600%\">9.7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Alumina_Ceramics_Economical_Wear-Resistant_Solution\"><\/span><strong><b>Alumina Ceramics<\/b><\/strong><strong><b>:<\/b><\/strong><strong><b>\u00a0Economical Wear-Resistant Solution<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><b>Vickers Hardness:<\/b><\/strong>\u00a015 &#8211; 18 GPa<\/p>\n<p><strong><b>Mohs Hardness:<\/b><\/strong>\u00a09.0<\/p>\n<p>Although it ranks lower among advanced ceramics, alumina still possesses a\u00a0hardness far exceeds quenched steel.<\/p>\n<p><strong><b>Wear-resistant <\/b><\/strong><strong><b>alumina <\/b><\/strong><strong><b>liners<\/b><\/strong>\u00a0utilize this hardness to handle low-speed erosion from pulverized coal in power plants or ores in mines. It can\u00a0protect steel equipment from wearing. <strong><b>Alumina ceramic valve cores<\/b><\/strong>\u00a0also ensure no scratches during frequent opening and closing friction, maintaining tight seal.<\/p>\n<p>However, when facing strong erosion from harder particles like quartz, the wear rate\u00a0of Al<sub>2<\/sub>O<sub>3<\/sub>\u00a0increases significantly.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Silicon_Nitride_Ceramics_with_Well-Balanced_Performance\"><\/span><strong><b>Silicon Nitride Ceramics <\/b><\/strong><strong><b>with Well-Balanced Performance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><b>Vickers Hardness:<\/b><\/strong>\u00a018 &#8211; 22 GPa<\/p>\n<p><strong><b>Mohs Hardness:<\/b><\/strong>\u00a09.0<\/p>\n<p>Silicon nitride possesses higher hardness than that of alumina. It has both high hardness\u00a0and\u00a0impact resistance.\u00a0Unlike other ceramics, Si<sub>3<\/sub>N<sub>4<\/sub>\u00a0is not prone to chipping.<\/p>\n<p><strong><b>High-speed bearing balls<\/b><\/strong>\u00a0utilize its\u00a0high hardness\u00a0property\u00a0to reduce deformation during rolling friction. Additionally, its high-hardness surface can crush tiny impurities in the lubricant,\u00a0without sustaining damage.<\/p>\n<p>While its hardness is superior, its surface scratch resistance is lower than that of silicon carbide in extreme high-pressure cutting or sandblasting environments.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Silicon_Carbide_Ceramics_for_Harsh_Wear_Conditions\"><\/span><strong><b>Silicon Carbide Ceramics for <\/b><\/strong><strong><b>Harsh Wear <\/b><\/strong><strong><b>Conditions<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><b>Vickers Hardness:<\/b><\/strong>\u00a022 &#8211; 28 GPa<\/p>\n<p><strong><b>Mohs Hardness:<\/b><\/strong>\u00a09.5<\/p>\n<p>Among non-oxide ceramics, silicon carbide\u00a0possesses a\u00a0hardness second only to boron carbide. It\u00a0effectively resists cutting and wear from the vast majority of natural substances.\u00a0Even at high temperatures of 1400\u00b0C, its hardness hardly degrades.\u00a0For 90% of extreme environments, silicon carbide is the optimal solution.<\/p>\n<p><a href=\"https:\/\/nkmceramic.com\/silicon-carbide-nozzle\/\"><strong><u><b>SiC h<\/b><\/u><\/strong><strong><u><b>igh-<\/b><\/u><\/strong><strong><u><b>p<\/b><\/u><\/strong><strong><u><b>ressure <\/b><\/u><\/strong><strong><u><b>n<\/b><\/u><\/strong><strong><u><b>ozzles<\/b><\/u><\/strong><\/a>\u00a0are specifically designed to handle fluid jets containing hard solid particles, like sandblasting or desulfurization. Only silicon carbide can ensure the nozzle orifice is not rapidly eroded.\u00a0<a href=\"https:\/\/nkmceramic.com\/silicon-carbide-seal-ring\/\"><strong><u><b>Mechanical <\/b><\/u><\/strong><strong><u><b>s<\/b><\/u><\/strong><strong><u><b>eal <\/b><\/u><\/strong><strong><u><b>r<\/b><\/u><\/strong><strong><u><b>ings<\/b><\/u><\/strong><\/a>\u00a0with\u00a0high hardness of SiC ensures the mating faces remain as flat as a mirror even under high-speed rotation, achieving zero leakage.<\/p>\n<p>However, extreme hardness comes with extreme brittleness. Due to its extreme hardness, the cost and difficulty of precision post-processing are much higher than those for alumina.<\/p>\n<figure id=\"attachment_21141\" aria-describedby=\"caption-attachment-21141\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-full wp-image-21141 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/2-Silicon-Carbide-Ceramic-Tiles-That-Shatter-Due-to-Strong-Impact.jpg\" alt=\"Silicon Carbide Ceramic Tiles That Shatter Due to Strong Impact\" width=\"1280\" height=\"721\" \/><figcaption id=\"caption-attachment-21141\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-21141 lazyload\" src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/2-Silicon-Carbide-Ceramic-Tiles-That-Shatter-Due-to-Strong-Impact.jpg\" alt=\"Silicon Carbide Ceramic Tiles That Shatter Due to Strong Impact\" width=\"1280\" height=\"721\" srcset=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/2-Silicon-Carbide-Ceramic-Tiles-That-Shatter-Due-to-Strong-Impact.jpg 1280w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/2-Silicon-Carbide-Ceramic-Tiles-That-Shatter-Due-to-Strong-Impact-768x433.jpg 768w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/noscript> Silicon Carbide Ceramic Tiles That Shatter Due to Strong Impact<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Boron_Carbide_Ceramics_with_Extreme_Hardness_Specialty_Choice\"><\/span><strong><b>Boron Carbide Ceramics<\/b><\/strong><strong><b>\u00a0with <\/b><\/strong><strong><b>Extreme Hardness<\/b><\/strong><strong><b>:<\/b><\/strong><strong><b>\u00a0Specialty Choice<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><b>Vickers Hardness:<\/b><\/strong>\u00a030 &#8211; 35 GPa<\/p>\n<p><strong><b>Mohs Hardness: <\/b><\/strong>9.7<\/p>\n<p>Boron carbide is also called \u201cBlack Diamond\u201d. Its hardness in nature is second to diamond and cubic boron nitride. It also features low density, making it lightweight.<\/p>\n<p><strong><b>Ballistic <\/b><\/strong><strong><b>a<\/b><\/strong><strong><b>rmor <\/b><\/strong><strong><b>p<\/b><\/strong><strong><b>lates<\/b><\/strong>\u00a0utilize its extreme hardness. It can instantly shatter high-velocity projectiles upon contact and absorb their energy.\u00a0Used as an <strong><b>abrasive<\/b><\/strong>, it leverages the hardness differential to process and polish other hard alloys or ceramics.<\/p>\n<p>Its excessive hardness results in extremely high processing costs. As a result, BN\u00a0is typically used only in specialized fields that demand the absolute limits of weight reduction and hardness.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Should_be_Cautious_with_Higher_Hardness_Materials\"><\/span><strong><b>Why Should <\/b><\/strong><strong><b>b<\/b><\/strong><strong><b>e Cautious with Higher Hardness Materials?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ceramics possess high hardness because of\u00a0their strong internal covalent bonds. This structure makes its atoms\u00a0difficult to displace. But it also means the material lacks ductility. Materials with higher hardness are generally more sensitive to impact. You should try your best to avoid subjecting these ceramic materials to physical shocks.<\/p>\n<p>Furthermore, the higher the ceramic\u2019s hardness, the higher the cost for post-processing and finishing. Machining SiC\u00a0requires expensive diamond tools and places extremely high demands on the manufacturer\u2019s equipment and technical processes.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Choose_the_Right_Solution_Based_on_Hardness_Needs\"><\/span><strong><b>How to Choose the Right Solution Based on Hardness Needs?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To optimize production costs and extend equipment life, we recommend selecting ceramic materials based on your specific engineering requirements.<\/p>\n<p><strong><b>Mild Wear <\/b><\/strong><strong><b>&amp;<\/b><\/strong><strong><b>\u00a0Budget Sensitive: <\/b><\/strong>First choice should be 92\/95\/99 <strong><b>Alumina <\/b><\/strong>ceramics.<\/p>\n<p><strong><b>High-Speed Operation <\/b><\/strong><strong><b>&amp;<\/b><\/strong><strong><b>\u00a0Impact Environments:<\/b><\/strong>\u00a0<strong><b>Silicon Nitride<\/b><\/strong>. Its toughness helps prevent parts from chipping or cracking.<\/p>\n<p><strong><b>Extreme Erosion <\/b><\/strong><strong><b>&amp;<\/b><\/strong><strong><b>\u00a0High-Temperature Corrosion:<\/b><\/strong>\u00a0<strong><b>Silicon Carbide ceramics<\/b><\/strong>. Its ultra-long service life reduces your total cost of ownership.<\/p>\n<p><strong><b>Maximum Hardness Regardless of Cost:<\/b><\/strong>\u00a0Choose <strong><b>Boron Carbide<\/b><\/strong>.<\/p>\n<p>Hardness is the most fascinating characteristic of advanced ceramics. Matching them to the right working conditions can\u00a0deliver the greatest value. So choosing the right one\u00a0is a key step in improving your industrial quality and efficiency.<\/p>\n<figure id=\"attachment_21142\" aria-describedby=\"caption-attachment-21142\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-full wp-image-21142 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/3-NKM-Wear-Resistant-Silicon-Carbide-Bushing-Drawings.jpg\" alt=\"NKM Wear-Resistant Silicon Carbide Bushing Drawings\" width=\"1280\" height=\"720\" \/><figcaption id=\"caption-attachment-21142\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-21142 lazyload\" src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/3-NKM-Wear-Resistant-Silicon-Carbide-Bushing-Drawings.jpg\" alt=\"NKM Wear-Resistant Silicon Carbide Bushing Drawings\" width=\"1280\" height=\"720\" srcset=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/3-NKM-Wear-Resistant-Silicon-Carbide-Bushing-Drawings.jpg 1280w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2025\/12\/3-NKM-Wear-Resistant-Silicon-Carbide-Bushing-Drawings-768x432.jpg 768w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/noscript> NKM Wear-Resistant Silicon Carbide Bushing Drawings<\/figcaption><\/figure>\n<p>If you are facing wear issues or need high-hardness materials, feel free to consult us. <a href=\"https:\/\/nkmceramic.com\/\"><strong><u><b>Newthink New Materials<\/b><\/u><\/strong><\/a>\u00a0has been deeply involved in the R&amp;D and production of advanced ceramic materials for 14 years. We specialize in the custom processing of high-performance <a href=\"https:\/\/nkmceramic.com\/silicon-carbide-ceramic\/\"><u>Silicon Carbide<\/u><\/a>\u00a0and Silicon Nitride parts.\u00a0Our engineers will provide you with free, full-process support\u00a0from material selection to after-sales service.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Reference\"><\/span><strong><b>Reference<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><u>[1] <\/u><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/0254058487900964\"><u>Clinton, D. J., &amp; Morrell, R. (1987). Hardness testing of ceramic materials.\u00a0<\/u><em><u><i>Materials chemistry and physics<\/i><\/u><\/em><u>,\u00a0<\/u><em><u><i>17<\/i><\/u><\/em><u>(5), 461-473.<\/u><\/a><\/p>\n<p><u>[2] <\/u><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0955221917300808\"><u>Ghorbal, G. B., Tricoteaux, A., Thuault, A., Louis, G., &amp; Chicot, D. (2017). Comparison of conventional Knoop and Vickers hardness of ceramic materials.\u00a0<\/u><em><u><i>Journal of the European Ceramic Society<\/i><\/u><\/em><u>,\u00a0<\/u><em><u><i>37<\/i><\/u><\/em><u>(6), 2531-2535.<\/u><\/a><\/p>\n<p><u>[3] <\/u><a href=\"http:\/\/jamme.acmsse.h2.pl\/papers_vol24_1\/24104.pdf\"><u>Hampshire, S. (2007). Silicon nitride ceramics\u2013review of structure, processing and properties.\u00a0<\/u><em><u><i>Journal of achievements in materials and manufacturing engineering<\/i><\/u><\/em><u>,\u00a0<\/u><em><u><i>24<\/i><\/u><\/em><u>(1), 43-50.<\/u><\/a><\/p>\n<p><u>[4] <\/u><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0043164802002405\"><u>Kato, K., &amp; Adachi, K. (2002). Wear of advanced ceramics.\u00a0<\/u><em><u><i>Wear<\/i><\/u><\/em><u>,\u00a0<\/u><em><u><i>253<\/i><\/u><\/em><u>(11-12), 1097-1104.<\/u><\/a><\/p>\n<p><u>[5] <\/u><a href=\"https:\/\/journals.pnu.edu.ua\/index.php\/pcss\/article\/view\/6226\"><u>Soltys, L. M., Mironyuk, I. F., Mykytyn, I. M., Hnylytsia, I. D., &amp; Turovska, L. V. (2023). Synthesis and properties of silicon carbide.\u00a0<\/u><em><u><i>Physics and Chemistry of Solid State<\/i><\/u><\/em><u>,\u00a0<\/u><em><u><i>24<\/i><\/u><\/em><u>(1), 5-16.<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Traditional metal materials fail quickly when facing erosion, extreme pressure, or highly abrasive media. High-hardness ceramics have become important\u00a0to industrial upgrades.\u00a0But which ceramic is actually the hardest? What are the differences between ceramics with different hardness levels? This article will provide an analysis of the hardness rankings and application of [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":21140,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Which Ceramics Have the Highest Hardness?<\/title>\n<meta name=\"description\" content=\"Find a suitable ceramic with high hardness? 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