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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 PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Volume99Issue:3Pages:988-995
AbstractSi2N2O 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 OrganizationNatural Sciences Foundation of China [51032006, 51372252]
Indexed Bysci
Language英语
WOS IDWOS:000372189300037
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74609
Collection中国科学院金属研究所
Corresponding Authorbinliu1981@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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