The effect of the reaction conditions on the morphology of coating layers of alumina hydrate on silicon carbide whiskers
文献类型：期刊论文
| 作者 | Nakamura, H; Chen, YF ; Kimura, K; Tateyama, H; Hirosue, H
|
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2001-06-25 |
| 卷号 | 117期号:3页码:270-278 |
| 关键词 | composite particles solution injection sodium hydrogen carbonate alumina hydrate SiC whiskers aqueous solution |
| ISSN号 | 0032-5910 |
| 其他题名 | Powder Technol. |
| 中文摘要 | Alumina hydrate-coated silicon carbide whiskers were prepared by a raw material injection method. which has already prepared several kinds of composite particles in an aqueous media by a similar manner with the fluidized bed coating method. This method injects the raw material for the coating layers into a precipitant solution in which the core particles are already dispersed to obtain the objective composite particles. In this study, the effect of the reaction conditions on the morphology of the coating layers was investigated. From the results, the surfaces were smoother under the following reaction conditions: higher silicon carbide whisker concentration, lower aluminum nitrate concentration, lower aluminum nitrate solution injection rate, higher partial pressure of carbon dioxide and lower reaction temperature. The coating process was considered to include a homogeneous nucleation and coalescence process, which had a significant effect on the surface morphology of the coating layer. From these conditions, a lower probability of collision between the particles grown from the homogeneous nuclei and a higher probability of collision between the particle from the homogeneous nuclei and the whiskers were considered to produce a smoother coating layer on the whiskers. (C) 2001 Elsevier Science B.V. All rights reserved. |
| 英文摘要 | Alumina hydrate-coated silicon carbide whiskers were prepared by a raw material injection method. which has already prepared several kinds of composite particles in an aqueous media by a similar manner with the fluidized bed coating method. This method injects the raw material for the coating layers into a precipitant solution in which the core particles are already dispersed to obtain the objective composite particles. In this study, the effect of the reaction conditions on the morphology of the coating layers was investigated. From the results, the surfaces were smoother under the following reaction conditions: higher silicon carbide whisker concentration, lower aluminum nitrate concentration, lower aluminum nitrate solution injection rate, higher partial pressure of carbon dioxide and lower reaction temperature. The coating process was considered to include a homogeneous nucleation and coalescence process, which had a significant effect on the surface morphology of the coating layer. From these conditions, a lower probability of collision between the particles grown from the homogeneous nuclei and a higher probability of collision between the particle from the homogeneous nuclei and the whiskers were considered to produce a smoother coating layer on the whiskers. (C) 2001 Elsevier Science B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | COMPOSITE-PARTICLES ; INJECTION METHOD ; SEED PARTICLES ; COATED POWDERS ; SIC-WHISKER ; NITRIDE ; HYDROLYSIS ; CERAMICS ; MULLITE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000169065600010 |
| 公开日期 | 2014-09-30 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11499]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Kyushu Natl Ind Res Inst, AIST, MITI, Dept Inorgan Mat, Tosu, Saga 841, Japan 2.Inst Chem Met, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nakamura, H,Chen, YF,Kimura, K,et al. The effect of the reaction conditions on the morphology of coating layers of alumina hydrate on silicon carbide whiskers[J]. POWDER TECHNOLOGY,2001,117(3):270-278. |
| APA | Nakamura, H,Chen, YF,Kimura, K,Tateyama, H,&Hirosue, H.(2001).The effect of the reaction conditions on the morphology of coating layers of alumina hydrate on silicon carbide whiskers.POWDER TECHNOLOGY,117(3),270-278. |
| MLA | Nakamura, H,et al."The effect of the reaction conditions on the morphology of coating layers of alumina hydrate on silicon carbide whiskers".POWDER TECHNOLOGY 117.3(2001):270-278. |
入库方式： OAI收割
来源：过程工程研究所
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