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

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	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
Source Publication	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
Volume	99 Issue:3 Pages:988-995
Abstract	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.
description.department	[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
Funding Organization	Natural Sciences Foundation of China [51032006, 51372252]
Indexed By	sci
Language	英语
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/74609
Collection	中国科学院金属研究所
Corresponding Author	binliu1981@hotmail.com; jywang@imr.ac.cn
Recommended Citation 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.

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