Accurate Exploration of the Intrinsic Lattice Thermal Conductivity of Si2N2O by Combined Theoretical and Experimental Investigations

IMR OpenIR

	Accurate Exploration of the Intrinsic Lattice Thermal Conductivity of Si2N2O by Combined Theoretical and Experimental Investigations
	Wan, Peng; Tian, Zhilin; Luo, Yixiu; Liu, Bin; Wang, Jingyang; binliu1981@hotmail.com; jywang@imr.ac.cn
	2016
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
卷号	99 期号:3 页码:988-995
摘要	Si2N2O is a promising ceramic with various structural and functional applications. Precisely exploring its thermal conductivity is crucially important to evaluate its thermal transport reliability as high-temperature structural component and electronic device. In this paper, temperature-dependent lattice thermal conductivity of Si2N2O is studied based on a method integrating density functional theory calculations and experimental measurements. The relationship between the complex crystal structure (or heterogeneous chemical bonding) and lattice thermal conductivity of Si2N2O is studied. We herein show that Si2N2O intrinsically has moderately high lattice thermal conductivity [30.9 W(mK)(-1) at 373 K], but extrinsic phonon scattering mechanisms, such as phonon scattering by point defects and grain boundaries etc., might significantly degrade the magnitude in experimental measurement [15.0 W(mK)(-1) at 373 K]. This work suggests the significance that understanding the intrinsic thermal conductivity, namely the upper limit value, is a precursor to deciphering the more complicated heat transport behavior of Si2N2O.
部门归属	[wan, peng ; tian, zhilin ; luo, yixiu ; liu, bin ; wang, jingyang] chinese acad sci, inst met res, high performance ceram div, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [wan, peng ; tian, zhilin ; luo, yixiu] univ chinese acad sci, beijing 100049, peoples r china
资助者	Natural Sciences Foundation of China [51032006, 51372252]
收录类别	sci
语种	英语
WOS记录号	WOS:000372189300037
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74609
专题	中国科学院金属研究所
通讯作者	binliu1981@hotmail.com; jywang@imr.ac.cn
推荐引用方式 GB/T 7714	Wan, Peng,Tian, Zhilin,Luo, Yixiu,et al. Accurate Exploration of the Intrinsic Lattice Thermal Conductivity of Si2N2O by Combined Theoretical and Experimental Investigations[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2016,99(3):988-995.
APA	Wan, Peng.,Tian, Zhilin.,Luo, Yixiu.,Liu, Bin.,Wang, Jingyang.,...&jywang@imr.ac.cn.(2016).Accurate Exploration of the Intrinsic Lattice Thermal Conductivity of Si2N2O by Combined Theoretical and Experimental Investigations.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,99(3),988-995.
MLA	Wan, Peng,et al."Accurate Exploration of the Intrinsic Lattice Thermal Conductivity of Si2N2O by Combined Theoretical and Experimental Investigations".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 99.3(2016):988-995.