Microstructural effect of alpha-Sialon ceramic on the resistance to cavitation erosion in deionized water | |
Department | 先进润滑与防护材料研究发展中心 |
Gong X(宫雪)1,2; He W(赫伟)3; Li Z(李珍)1; Gui LH(归林华)3; Han JS(韩杰胜)1; Liu Q(刘茜)3; Meng JH(孟军虎)1; Lv JJ(吕晋军)1,4; Lv JJ(吕晋军) | |
The second department | 固体润滑国家重点实验室 |
2014 | |
Source Publication | Ceramics International |
ISSN | 0272-8842 |
Volume | 40Issue:5Pages:7161-7169 |
Abstract | The resistance to cavitation erosion of one Yb-α-Sialon ceramic and two Dy-α-Sialon ceramics (Dy-α-Sialon-1 and Dy-α-Sialon-2) was investigated in deionized water using an ultrasonic vibratory apparatus. The incubation periods of Dy-α-Sialon-1, Dy-α-Sialon-2 and Yb-α-Sialon ceramic were 210 min, 300 min and 360 min, respectively. Surface roughness and area fraction of cavities were found good indicators for the evolution of ceramic serosion. The microstructural features, including main phase(α phase), inhomogeneities of the microstructures and type of rare earth oxide, were correlated to the cavitation erosion behavior. It was found that the elongated α-Sialon grains in Yb-α-Sialon and Dy-α-Sialon-2 produced a self-toughening effect to increase the incubation period. The aggregation of Dy2O3 in Dy-α-Sialon-1 had an adverse effect on the resistance to cavitation erosion. Impurity phases and type of rare earth oxide had impacts on resistance to cavitation erosion. The findings in this work indicate that the cavitation erosion resistance of α-Sialon ceramics could be improved by microstructure optimization. |
Keyword | Hot Pressing Wear Resistance Sialon Ceramic |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.ceramint.2013.12.054 |
Funding Organization | Natural Science Foundation of China (NSFC, no. 51075382);the “Hundred Talents Program” (Junhu Meng)of Chinese Academy of Sciences |
Indexed By | SCI |
If | 2.605 |
Language | 英语 |
Funding Project | 金属基高温润滑材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/7063 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Lv JJ(吕晋军) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200000, Peoples R China 4.NW Univ Xian, Coll Chem & Mat, Xian 710069, Peoples R China |
Recommended Citation GB/T 7714 | Gong X,He W,Li Z,et al. Microstructural effect of alpha-Sialon ceramic on the resistance to cavitation erosion in deionized water[J]. Ceramics International,2014,40(5):7161-7169. |
APA | Gong X.,He W.,Li Z.,Gui LH.,Han JS.,...&吕晋军.(2014).Microstructural effect of alpha-Sialon ceramic on the resistance to cavitation erosion in deionized water.Ceramics International,40(5),7161-7169. |
MLA | Gong X,et al."Microstructural effect of alpha-Sialon ceramic on the resistance to cavitation erosion in deionized water".Ceramics International 40.5(2014):7161-7169. |
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