With the development of new synthesis methods and chemistries,a number of new superhard materials have been reported to be harder than diamond.While such materials are highly desirable due to their wide-ranging applic...With the development of new synthesis methods and chemistries,a number of new superhard materials have been reported to be harder than diamond.While such materials are highly desirable due to their wide-ranging applications,there are some inherent uncertainties in the methods utilized to determine and define the hardness of such materials.In this paper,we employed the standard Vickers diamond indenter and substitute indenters with the same shape to measure the hardness of nine ceramics and superhard materials within well-defined criteria and methodology,for the assessment of consistency in the hardness testing.The findings and the developed testing method in the current study have broad implications in characterizing new and emerging superhard materials,leading to new discoveries.展开更多
基金supported by the National Key R&D Pro-gram of China (No.2018YFA0305900)the National Natural Science Foundation of China (Nos.11872198,U2030110,51472171,11427810 and 11704014)+8 种基金the Science and Technology Innovation Team of Sichuan Province (No.15CXTD0025)the Key Research Projects of Jingchu University of Technology (Nos.HX202160 and HX2022001)the collaborative project fund between Saudi Aramco and Chengdu Dongwei Technology Co.Ltd (No.4600000955)partially supported by the Shenzhen Science and Technology Program (Nos.JCYJ20190813103201662 and JCYJ20210324121405014)the Key Research Platforms and Research Projects of Universities in Guangdong Province (No.2020ZDZX2035)the Natural Science Foundation of Top Talent of Shenzhen Technology University (SZTU) (No.2019202)the Shenzhen Peacock Plan (No.KQTD2016053019134356)the Guangdong Innovative&Entrepreneurial Research Team Program (No.2016ZT06C279)the Major Science and Technology Infrastructure Project of Material Genome Big-science Facilities Platform supported by Municipal Development and Reform Commission of Shenzhen.
文摘With the development of new synthesis methods and chemistries,a number of new superhard materials have been reported to be harder than diamond.While such materials are highly desirable due to their wide-ranging applications,there are some inherent uncertainties in the methods utilized to determine and define the hardness of such materials.In this paper,we employed the standard Vickers diamond indenter and substitute indenters with the same shape to measure the hardness of nine ceramics and superhard materials within well-defined criteria and methodology,for the assessment of consistency in the hardness testing.The findings and the developed testing method in the current study have broad implications in characterizing new and emerging superhard materials,leading to new discoveries.
