Thermal expansion and P-V-T equation of state of cubic silicon nitride
Thermal expansion and P-V-T equation of state of cubic silicon nitride
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立方氮化硅的热膨胀及P-V-T状态方程
DOI:
10.1016/j.jeurceramsoc.2019.05.003
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发表时间:
2019
影响因子:
5.7
通讯作者:
Wakai F
中科院分区:
文献类型:
--
作者:
Nishiyama N;Fujii K;Kulik E;Shiraiwa M;Gaida NA;Higo Y;Tange Y;Holzheid A;Yashima M;Wakai F
We performed in-situ X-ray diffraction measurements of polycrystalline cubic silicon nitride samples at high temperatures under atmospheric pressure and at simultaneous high-pressure-temperature conditions. In air, cubic silicon nitride survives metastably up to 1733 K without oxidation. The temperature dependence of the thermal expansion coefficient was determined to be α(T) =a1+a2T–a3T−2wherea1= 1.34(6) × 10−5K−1,a2= 5.06(44) × 10−9K−2, anda3= 0.20(10) K. Using all the experimental data obtained under atmospheric and high pressures, a complete set of parameters of the high-temperature third-order Birch Murnaghan equation of state was obtained:K300,0= 303(5) GPa,K′300,0= 5.1(8), and (∂KT,0/∂T)P= –0.017(1) GPa K−1, whereK0,K′0, and (∂KT,0/∂T)Pare the isothermal bulk modulus, its pressure derivative, and its temperature derivative, respectively. These parameters are necessary to calculate the equilibrium phase boundary between the β and cubic phases in silicon nitride.
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影响因子:
2.7
作者:
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通讯作者:
Yahong Zhang;A. Navrotsky;T. Sekine
影响因子:
3.9
作者:
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3
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通讯作者:
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影响因子:
1.4
作者:
SAXENA, SK;ZHANG, J
通讯作者:
ZHANG, J
影响因子:
3.7
作者:
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通讯作者:
N. Nishiyama;T. Katsura;K. Funakoshi;A. Kubo;T. Kubo;Y. Tange;Yuichiro Sueda;S. Yokoshi