Compressibility and thermoelasticity of CrN

Yan，Mingqi1,2,3; Zhou，Xuefeng2,3; Cheng，Hu2,3; Wang，Liping3; Zhang，Jianzhong4; Yu，Xiaohui5; He，Duanwei6; Mei，Jia wei2; Zhao，Yusheng2,3; Wang，Shanmin2,3

2020

10.1080/08957959.2020.1763981

HIGH PRESSURE RESEARCH   影响因子和分区

0895-7959

1477-2299

We report experimental determination of compressibility and thermoelasticity for CrN based on in situ high pressure/high temperature synchrotron x-ray diffraction measurements. The pressure-induced cubic-to-orthorhombic phase transition is observed at ∼ 5 GPa in high-quality CrN samples synthesized using a high pressure reaction route. Equation of state, bulk modulus and axial compressibility of this material are obtained by analysis of high pressure x-ray diffraction data collected at room temperature. Both cubic and orthorhombic phases have a similar bulk modulus value of 257 (5) and 262 (6) GPa, respectively. For orthorhombic CrN, the b-axis has the most axial incompressibility, which should be associated with magnetic properties. In addition, the isothermal equation of states is also determined at different temperatures of 300, 400, 600, 800, 1000, and 1200 K, respectively. Some of the important thermoelastic properties of cubic CrN are thus derived, including temperature derivative of bulk modulus (Formula presented.) and volumetric thermal expansivity (Formula presented.) where a= 1.95 (16)×10 K and a= 4.39 (3)×10 K.

Chromium nitride CrN high pressure phase transition thermal equation of state

SCI ; EI

英语

其他

Key Research Platforms and Research Projects of Universities in Guangdong Province[2018KZDXM062] ; Guangdong Innovative & Entrepreneurial Research Team Program[2016ZT06C279] ; Shenzhen Peacock Plan[KQTD2016053019134356]

Physics

Physics, Multidisciplinary

WOS:000538513500001

TAYLOR & FRANCIS LTD

20202208770519

Compressibility ; X ray diffraction ; Elastic moduli ; Nitrogen compounds ; Elasticity ; High pressure engineering ; Thermoelasticity

Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

PHYSICS

2-s2.0-85085519522

Scopus

1.Harbin Institute of Technology,Harbin,China
2.Department of Physics,Southern University of Science and Technology,Shenzhen,China
3.Shenzhen Engineering Research Center for Frontier Materials Synthesis at High Pressure,Southern University of Science and Technology,Shenzhen,China
4.Materials Science & Technology Division,Los Alamos National Laboratory,Los Alamos,United States
5.Institute of Physics,Chinese Academy of Sciences,Beijing,China
6.Institute of Atomic & Molecular Physics,Sichuan University,Chengdu,China

Yan，Mingqi,Zhou，Xuefeng,Cheng，Hu,et al. Compressibility and thermoelasticity of CrN[J]. HIGH PRESSURE RESEARCH,2020,40(3):423-433.

Yan，Mingqi.,Zhou，Xuefeng.,Cheng，Hu.,Wang，Liping.,Zhang，Jianzhong.,...&Wang，Shanmin.(2020).Compressibility and thermoelasticity of CrN.HIGH PRESSURE RESEARCH,40(3),423-433.

Yan，Mingqi,et al."Compressibility and thermoelasticity of CrN".HIGH PRESSURE RESEARCH 40.3(2020):423-433.