Nanosized microstructure of Al2O3-ZrO2 (Y2O3) eutectics fabricated by laser engineered net shaping

被引：100
|
作者：
Niu, Fangyong [1 ]
Wu, Dongjiang [1 ]
Ma, Guangyi [1 ]
Wang, Jiangtian [1 ]
Guo, Minhai [1 ]
Zhang, Bi [1 ,2 ]
机构：
[1] Dalian Univ Technol, Key Lab Precis & Nontradit Machining Technol, Minist Educ, Dalian 116024, Liaoning, Peoples R China
[2] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA
来源：
SCRIPTA MATERIALIA | 2015年 / 95卷
基金：
中国博士后科学基金;
关键词：
Laser deposition; Eutectic solidification; Hardness test; Ceramics; Al2O3-ZrO2; MECHANICAL-PROPERTIES; COMPOSITES; PLATES;
D O I：
10.1016/j.scriptamat.2014.09.026
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Cylindrical and arc-shaped Al2O3-ZrO2 (Y2O3) eutectic ceramic structures without any binders were directly fabricated by laser engineered net shaping from pure powders. During the process, mixed ceramic powders are completely melted at the required position by a high-energy laser beam, yielding fully dense ceramic with fine-grained microstructure in which the eutectic spacing is similar to 100 nm. The average microhardness and fracture toughness of the produced ceramic are 17.15 GPa and 4.79 MPa.m(1/2), respectively. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：39 / 41
页数：3
相关论文
共 50 条
  • [21] MICROSTRUCTURE OF ZRO2-2.5MOL-PERCENT-Y2O3-8.5MOL-PERCENT-AL2O3 IN DIRECTIONALLY SOLIDIFIED AL2O3-ZRO2(Y2O3) EUTECTIC
    ECHIGOYA, J
    SUTO, H
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1986, 5 (09) : 949 - 950
  • [22] Insights into the ternary eutectic microstructure formed in intercolony regions in Al2O3-ZrO2(Y2O3) system
    Fu, Lian-sheng
    Chen, Guo-qing
    Fu, Xue-song
    Zhou, Wen-long
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2019, 102 (01) : 498 - 507
  • [23] Transitional eutectic microstructure of Al2O3-ZrO2 (Y2O3) ceramics prepared by spark plasma sintering
    Xia, Xiaojian
    Li, Xiaoqiang
    Zhang, Minai
    Zheng, Donghai
    MATERIALS LETTERS, 2016, 175 : 212 - 214
  • [24] Precipitation of the Eutectic Al2O3-ZrO2 (Y2O3) on the Surface of SiC Particles
    Nesmelov, D. D.
    Kozhevnikov, O. A.
    Ordan'yan, S. S.
    Perevislov, S. N.
    GLASS AND CERAMICS, 2017, 74 (1-2) : 43 - 47
  • [25] GROWTH OF AL2O3-ZRO2(Y2O3) EUTECTIC COMPOSITE BY STEPANOV TECHNIQUE
    BORODIN, VA
    REZNIKOV, AG
    STAROSTIN, MY
    STERIOPOLO, TA
    TATARCHENKO, VA
    CHERNYSHOVA, LI
    YALOVETS, TN
    JOURNAL OF CRYSTAL GROWTH, 1987, 82 (1-2) : 177 - 181
  • [26] FRACTURE BEHAVIOR OF DIRECTIONALLY SOLIDIFIED AL2O3-ZRO2 (Y2O3) EUTECTIC
    HULSE, CO
    BATT, JA
    AMERICAN CERAMIC SOCIETY BULLETIN, 1973, 52 (04): : 344 - 345
  • [27] 包裹共沉淀制备α-Al2O3-ZrO2（Y2O3）粉末
    徐真祥
    朱宣惠
    谢友柏
    硅酸盐通报, 1992, (01) : 22 - 24+40
  • [28] AMORPHIZED POWDERS OF EUTECTIC COMPOSITION IN THE AL2O3-ZRO2(Y2O3) SYSTEM
    LAKIZA, SN
    SHEVCHENKO, AV
    ZAITSEVA, ZA
    KNYSH, YA
    SOVIET POWDER METALLURGY AND METAL CERAMICS, 1990, 29 (01): : 3 - 6
  • [29] MECHANICAL PROPERTIES OF EUTECTICS IN AL2O3 ZRO2 Y2O3 SYSTEM
    SCHMID, F
    VIECHNICKI, DJ
    AMERICAN CERAMIC SOCIETY BULLETIN, 1972, 51 (04): : 322 - +
  • [30] INFLUENCE OF Y2O3 ADDITION ON THE TRANSFORMATION BEHAVIOR OF ZRO2 IN AL2O3-ZRO2 COMPOSITES
    ARAHORI, T
    IWAMOTO, N
    UMESAKI, N
    YOGYO-KYOKAI-SHI, 1987, 95 (10): : 949 - 954
12345