Hardness and compression behavior of niobium carbide

doi:10.1080/08957959.2017.1297810

	Hardness and compression behavior of niobium carbide
	Peng, F; Liu, FM; Liu J(刘景); He, DW; Liu, J; Liu, PP
刊名	HIGH PRESSURE RESEARCH
	2017
卷号	37 期号:2 页码:244-255
关键词	Hardness compression behavior Nbc binderless hard material
ISSN号	0895-7959
DOI	10.1080/08957959.2017.1297810
文献子类	Article
英文摘要	We report the combined experimental and theoretical investigations on high pressure structural stability of niobium carbide (NbC). The compressibility of NbC has been measured using angle-dispersive synchrotron X-ray diffraction in a diamond anvil cell (DAC) at room temperature and high pressure (up to 38.0 GPa), complemented with first-principles density-function theory calculations. The results imply that NbC shows bulk modulus of K-0 = 281 (6) GPa with a pressure derivative K'(0) = 6.2 (1.5) for its strong covalent bonding. In addition, indentation testing on the well-sintered bulk NbC obtained at 5.0 GPa/1400 degrees C yielded a Vickers hardness of 19.2 GPa and fracture toughness of 7.7 MPa m(1/2) at applied load of 10 kgf, demonstrating that binderless NbC prepared under high pressure should be a prospective hard material.
电子版国际标准刊号	1477-2299
WOS关键词	TRANSITION-METAL CARBIDES ; MECHANICAL-PROPERTIES ; ELECTRONIC-STRUCTURE ; PHASE-STABILITY ; NBC ; INDENTATION ; CALIBRATION ; DEPOSITION ; PRESSURES ; NITRIDES
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000399885500014
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284779]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Peng, F,Liu, FM,Liu J,et al. Hardness and compression behavior of niobium carbide[J]. HIGH PRESSURE RESEARCH,2017,37(2):244-255.
APA	Peng, F,Liu, FM,刘景,He, DW,Liu, J,&Liu, PP.(2017).Hardness and compression behavior of niobium carbide.HIGH PRESSURE RESEARCH,37(2),244-255.
MLA	Peng, F,et al."Hardness and compression behavior of niobium carbide".HIGH PRESSURE RESEARCH 37.2(2017):244-255.