短切硅酸铝纤维增强硅溶胶型壳的抗弯强度及高温自重变形
为了提高熔模铸造硅溶胶型壳的性能,向涂料中添加硅酸铝纤维制备纤维增强熔模铸造型壳试样。对不同纤维加入量条件下所获得的纤维增强型壳试样的常温及焙烧后抗弯强度、高温自重变形量的变化规律进行研究,并利用SEM观察型壳试样断口形貌。结果表明：随硅酸铝纤维加入量从0.2%~1.0%（质量分数,下同）变化,其常温抗弯强度显著增大,高温自重变形量减小;纤维加入量为1.0%时,试样的常温抗弯强度较未增强的试样提高了47%,而高温自重变形减少约50%。采用0.2%~1.0%的硅酸铝纤维增强后,复合型壳焙烧后强度至少提高39%。断口SEM形貌观察分析结果表明,纤维增强硅溶胶型壳试样受力破坏失效主要由于硅溶胶凝胶膜...
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| Published in | 材料工程 Vol. 43; no. 7; pp. 56 - 61 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
内蒙古工业大学材料科学与工程学院,呼和浩特,010051
2015
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4381 1001-4381 |
| DOI | 10.11868/j.issn.1001-4381.2015.07.010 |
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| Abstract | 为了提高熔模铸造硅溶胶型壳的性能,向涂料中添加硅酸铝纤维制备纤维增强熔模铸造型壳试样。对不同纤维加入量条件下所获得的纤维增强型壳试样的常温及焙烧后抗弯强度、高温自重变形量的变化规律进行研究,并利用SEM观察型壳试样断口形貌。结果表明：随硅酸铝纤维加入量从0.2%~1.0%（质量分数,下同）变化,其常温抗弯强度显著增大,高温自重变形量减小;纤维加入量为1.0%时,试样的常温抗弯强度较未增强的试样提高了47%,而高温自重变形减少约50%。采用0.2%~1.0%的硅酸铝纤维增强后,复合型壳焙烧后强度至少提高39%。断口SEM形貌观察分析结果表明,纤维增强硅溶胶型壳试样受力破坏失效主要由于硅溶胶凝胶膜的断裂、硅酸铝纤维拔出、断裂及脱粘等综合作用所致。 |
|---|---|
| AbstractList | 为了提高熔模铸造硅溶胶型壳的性能,向涂料中添加硅酸铝纤维制备纤维增强熔模铸造型壳试样。对不同纤维加入量条件下所获得的纤维增强型壳试样的常温及焙烧后抗弯强度、高温自重变形量的变化规律进行研究,并利用SEM观察型壳试样断口形貌。结果表明：随硅酸铝纤维加入量从0.2%~1.0%（质量分数,下同）变化,其常温抗弯强度显著增大,高温自重变形量减小;纤维加入量为1.0%时,试样的常温抗弯强度较未增强的试样提高了47%,而高温自重变形减少约50%。采用0.2%~1.0%的硅酸铝纤维增强后,复合型壳焙烧后强度至少提高39%。断口SEM形貌观察分析结果表明,纤维增强硅溶胶型壳试样受力破坏失效主要由于硅溶胶凝胶膜的断裂、硅酸铝纤维拔出、断裂及脱粘等综合作用所致。 TG113.26; 为了提高熔模铸造硅溶胶型壳的性能,向涂料中添加硅酸铝纤维制备纤维增强熔模铸造型壳试样.对不同纤维加入量条件下所获得的纤维增强型壳试样的常温及焙烧后抗弯强度、高温自重变形量的变化规律进行研究,并利用SEM观察型壳试样断口形貌.结果表明:随硅酸铝纤维加入量从0.2％～1.0％(质量分数,下同)变化,其常温抗弯强度显著增大,高温自重变形量减小;纤维加入量为1.0％时,试样的常温抗弯强度较未增强的试样提高了47％,而高温自重变形减少约50％.采用0.2％～1.0％的硅酸铝纤维增强后,复合型壳焙烧后强度至少提高39％.断口SEM形貌观察分析结果表明,纤维增强硅溶胶型壳试样受力破坏失效主要由于硅溶胶凝胶膜的断裂、硅酸铝纤维拔出、断裂及脱粘等综合作用所致. |
| Author | 吕凯 刘向东 王浩 冯华 李艳芬 |
| AuthorAffiliation | 内蒙古工业大学材料科学与工程学院,呼和浩特010051 |
| AuthorAffiliation_xml | – name: 内蒙古工业大学材料科学与工程学院,呼和浩特,010051 |
| Author_FL | LIU Xiang-dong WANG Hao LYU Kai FENG Hua LI Yan-fen |
| Author_FL_xml | – sequence: 1 fullname: LYU Kai – sequence: 2 fullname: LIU Xiang-dong – sequence: 3 fullname: WANG Hao – sequence: 4 fullname: FENG Hua – sequence: 5 fullname: LI Yan-fen |
| Author_xml | – sequence: 1 fullname: 吕凯 刘向东 王浩 冯华 李艳芬 |
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| ClassificationCodes | TG113.26 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.11868/j.issn.1001-4381.2015.07.010 |
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| DocumentTitleAlternate | Bending Strength and High-temperature Self-loaded Deformation of Short Aluminum Silicate Fiber-reinforced Silicon Sol Shell |
| DocumentTitle_FL | Bending Strength and High-temperature Self-loaded Deformation of Short Aluminum Silicate Fiber-reinforced Silicon Sol Shell |
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| EndPage | 61 |
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| Keywords | 高温自重变形 aluminum silicate fiber fiber-reinforced shell 硅酸铝纤维 纤维增强型壳 抗弯强度 熔模铸造 investment casting high-temperature self-loaded deformation bending strength |
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| Notes | 11-1800/TB LYU Kai,LIU Xiang-dong,WANG Hao,FENG Hua,LI Yan-fen （School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051 ,China） In order to improve the strength of silicon sol shell for investment casting process,short fibers of aluminum silicate were mixed into the slurries.The flexural strength of green shell,fired strength and self-loaded deformation at elevated temperature were investigated and the fracture surface of shell samples were observed by SEM.The results show that as content of aluminum silicate fibers increases from 0.2%to 1.0%（mass fraction,same as below）,the green strength of shell specimens is increased and the self-loaded deformation at elevated temperature is decreased.The shell specimen reinforced with 1.0% fibers addition reaches the highest green strength,an increase of 47% than the shell specimen unreinforced with fibers,and the self-loaded deformation at elevated temperature has a decrease of about 50%.The fired strength of shell sample with t |
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| PublicationTitle | 材料工程 |
| PublicationTitleAlternate | Journal of Materials Engineering |
| PublicationTitle_FL | Journal of Materials Engineering |
| PublicationYear | 2015 |
| Publisher | 内蒙古工业大学材料科学与工程学院,呼和浩特,010051 |
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| SubjectTerms | 抗弯强度 熔模铸造 硅酸铝纤维 纤维增强型壳 高温自重变形 |
| Title | 短切硅酸铝纤维增强硅溶胶型壳的抗弯强度及高温自重变形 |
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