Chinese Journal of Materials Research  2013, Vol. 27 Issue (4): 342-348    DOI:

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Influence of Y2O3 and Nano-AlN Powders on the Sintering and Thermal Conductivity of AlN Ceramics

YANG Qinghua1 LI Hongwei1 WANG Huanping1 MA Hongping2 LEI Ruoshan1 XU Shiqing1**

1. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018 2. School of Mechanical & Automotive Engineering, Zhejiang University of Science and Technology, Hangzhou 310023

YANG Qinghua LI Hongwei WANG Huanping MA Hongping LEI Ruoshan XU Shiqing**. Influence of Y₂O₃ and Nano-AlN Powders on the Sintering and Thermal Conductivity of AlN Ceramics. Chinese Journal of Materials Research, 2013, 27(4): 342-348.

Abstract Related Articles Recommended Metrics Download:  PDF(3278KB)  Export:  BibTeX | EndNote (RIS)       Abstract  AlN ceramics doped with 4% Y2O3 and appropriate nano-AlN powders were sintered at 1700-1850℃, the influences of Y2O3 and nano-AlN powders on the sintering and thermal conductivity of AlN ceramics were investigated. The results show that the Al2O3 powders distributed in the surface of nano-AlN took the priority to react with Y2O3, and second phase of Al5Y3O12 with higher activity were gotten, which could form liquid at lower temperature. In addition, the nano-AlN powders can also promote the density of AlN ceramics. The two factors have a synergetic action on the sintering of AlN ceramics, and can improve the distribution of second phase in the microstructure of AlN ceramics. Therefore, AlN ceramics with higher thermal conductivity can be prepared at lower sintering temperature. The AlN ceramics with 4% Y2O3 and 1.5% nano-AlN doped, sintered at 1800℃ have a density of 3.26 gcm-3and a thermal conductivity of 151.75 W/(mK) , and second phase distributes in the boundaries of AlN grains. ZTFLH:  TQ174     TB321   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.cjmr.org/EN/     OR     https://www.cjmr.org/EN/Y2013/V27/I4/342 [1] . Effect of BNZ Component on the Structure and Properties of KNN based Lead-free Piezoelectric Ceramics[J]. 材料研究学报, 0, (): 0-0. [2] ZHU Mingxing, DAI Zhonghua. Study on Energy Storage Properties of SrSC0.5Nb0.5O3 Modified BNT-based Lead-free Ceramics[J]. 材料研究学报, 2023, 37(3): 228-234. [3] ZENG Renfen, JIANG Xiangping, CHEN Chao, HUANG Xiaokun, NIE Xin, YE Fen. Effects of Er3+-doping on Performance of Bi3Ti1.5W0.5O9-Bi4Ti3O12 Intergrowth Lead-free Piezoceramics[J]. 材料研究学报, 2022, 36(10): 760-768. [4] YU Chao, XING Guangchao, WU Zhengmin, DONG Bo, DING Jun, DI Jinghui, ZHU Hongxi, DENG Chengji. Effect of Submicron Al2O3 Addition on Sintering Process of Recrystallized Silicon Carbide[J]. 材料研究学报, 2022, 36(9): 679-686. [5] LI Xiuxian, QIU Wanqi, JIAO Dongling, ZHONG Xichun, LIU Zhongwu. Promotion Effect of α-Al2O3 Seeds on Low-temperature Deposition of α-Al2O3 Films by Reactive Sputtering[J]. 材料研究学报, 2022, 36(1): 8-12. [6] WANG Peng, LU Xilong, CAO Chun-e, CHEN Yunxia, SHEN Huarong, ZHANG Xu. Influence of Nucleation-growth Liquid-liquid Phase Partition on Properties of Lead-free Low Temperature Frit[J]. 材料研究学报, 2021, 35(9): 657-666. [7] TANG Changbin, NIU Hao, HUANG Ping, WANG Fei, ZHANG Yujie, XUE Juanqin. Electrosorption Characteristics of NF/PDMA /MnO2-Co Capacitor Electrode for Pb2+ in a Dilute Solution of Lead Ions[J]. 材料研究学报, 2021, 35(2): 115-127. [8] TANG Changbin, WANG Fei, NIU Hao, YU Lihua, XUE Juanqin, YIN Xiangyang. Properties of Ti-based PbO2 Electrocatalytic Anodes with an Arc Sprayed ZrN-interlayer[J]. 材料研究学报, 2020, 34(7): 527-534. [9] LI Hongxia,LI Baowei,XU Pengfei,LIU Zhongxing. Influences of Heat Treatment Soaking Time on Crystallization and Properties of Tailings-based Glass-Ceramics[J]. 材料研究学报, 2020, 34(3): 209-216. [10] WANG Guangwei,CHEN Hongzhen,LI Youfeng,XIE Bo,JIANG Zhongyuan. Influence of High Temperature Water Vapor on Characteristics of CO2 Electrochemical Sensor[J]. 材料研究学报, 2019, 33(9): 713-720. [11] Qingmin WEI,Xiuying LI,Shihua XU,Guocong LIU,Guobao HUANG,Zhihui LUO. Hydrothermal Synthesis and Photoluminescent Properties of YVO4: Eu3+, Bi3+ Red Phosphors[J]. 材料研究学报, 2019, 33(5): 394-400. [12] Lielin WANG,Yang ZENG,Hua XIE,Sihao DENG,Xingping LI,Facheng YI,Shuqing JIANG,Yinhang ZHOU. Liquid Synthesis and Characterization of Nanosized Cubic Lithium Fluoride Particles[J]. 材料研究学报, 2019, 33(4): 271-276. [13] Weiming GUO, Dawang TAN, Lixiang WU, Huatai LIN, Shanghua WU. Indentation Size Effect for the Hardness of B4C/TiB2 Ceramics[J]. 材料研究学报, 2017, 31(12): 894-900. [14] Wanli YANG, Lina DAI, Zhongqi SHI, Zhichao XIAO, Xuhui ZHANG. Effect of Infiltration- and Pyrolyzation-Treatment on Mechanical Properties of Pressureless Sintered SiC/h-BN Ceramics[J]. 材料研究学报, 2017, 31(8): 635-640. [15] Bijun FANG, Xing LIU, Zhenqian ZHANG, Zhihui CHEN, Jianning DING, Xiangyong ZHAO, Haosu LUO. Ferroelectric Phase Transition Character of BCZT Lead-free Piezoelectric Ceramics[J]. 材料研究学报, 2017, 31(4): 248-254. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed