High Temperature Anti-deformability of Composite Modified Ceramic Shell with Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg Series Mineralizer
In order to improve the high temperature anti-deformability of ceramic shells for single crystal blade, composite modified ceramic shell specimens of Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg series mineralizer were prepared with addition of 2% (mass fraction, the same below),...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2018-11-01
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| Series: | Cailiao gongcheng |
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| Online Access: | http://jme.biam.ac.cn/CN/Y2018/V46/I11/96 |
| _version_ | 1797968168596013056 |
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| author | GUO Zhen ZHAO Yu-tao MA De-xin JIA Zhi-hong LIANG Xiang-feng XU Wei-tai |
| author_facet | GUO Zhen ZHAO Yu-tao MA De-xin JIA Zhi-hong LIANG Xiang-feng XU Wei-tai |
| author_sort | GUO Zhen |
| collection | DOAJ |
| description | In order to improve the high temperature anti-deformability of ceramic shells for single crystal blade, composite modified ceramic shell specimens of Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg series mineralizer were prepared with addition of 2% (mass fraction, the same below), 4% and 6%, then the thermal expansion and high-temperature self-loaded deformation of specimens were studied. The results show that high temperature thermal expansion and self-loaded deformation firstly reduced and then increased with the increase of the addition, when content is 4%, the test improvement is obtained, the minimum values of the linear expansion and high-temperature self-loaded deformation are 0.66% and 0.55% at 1500℃, and the average decrease efficiency of the composite mineralizer on high-temperature self-loaded deformation is twice that of thermal expansion. The mechanism of composite mineralizer to modify the shell is to prevent the viscous flow of glass phase by bridging mullite as micro framework and fine globular yttrium aluminum garnet (YAG) inserted between crystals, to jointly improve anti-deformation ability of the shell. However, adding too much, it will produce a large number of glass phase, weakening high temperature performance of the shell. |
| first_indexed | 2024-04-11T02:41:33Z |
| format | Article |
| id | doaj.art-d59345220ed54cb196321ee7553fded4 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:41:33Z |
| publishDate | 2018-11-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-d59345220ed54cb196321ee7553fded42023-01-02T18:56:04ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812018-11-0146119610110.11868/j.issn.1001-4381.2017.001085201811001085High Temperature Anti-deformability of Composite Modified Ceramic Shell with Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg Series MineralizerGUO Zhen0ZHAO Yu-tao1MA De-xin2JIA Zhi-hong3LIANG Xiang-feng4XU Wei-tai5School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaSchool of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaSchool of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaSchool of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaSchool of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaSchool of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaIn order to improve the high temperature anti-deformability of ceramic shells for single crystal blade, composite modified ceramic shell specimens of Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg series mineralizer were prepared with addition of 2% (mass fraction, the same below), 4% and 6%, then the thermal expansion and high-temperature self-loaded deformation of specimens were studied. The results show that high temperature thermal expansion and self-loaded deformation firstly reduced and then increased with the increase of the addition, when content is 4%, the test improvement is obtained, the minimum values of the linear expansion and high-temperature self-loaded deformation are 0.66% and 0.55% at 1500℃, and the average decrease efficiency of the composite mineralizer on high-temperature self-loaded deformation is twice that of thermal expansion. The mechanism of composite mineralizer to modify the shell is to prevent the viscous flow of glass phase by bridging mullite as micro framework and fine globular yttrium aluminum garnet (YAG) inserted between crystals, to jointly improve anti-deformation ability of the shell. However, adding too much, it will produce a large number of glass phase, weakening high temperature performance of the shell.http://jme.biam.ac.cn/CN/Y2018/V46/I11/96composite mineralizerthermal expansionhigh-temperature self-loaded deformationmulliteyttrium aluminum garnet |
| spellingShingle | GUO Zhen ZHAO Yu-tao MA De-xin JIA Zhi-hong LIANG Xiang-feng XU Wei-tai High Temperature Anti-deformability of Composite Modified Ceramic Shell with Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg Series Mineralizer Cailiao gongcheng composite mineralizer thermal expansion high-temperature self-loaded deformation mullite yttrium aluminum garnet |
| title | High Temperature Anti-deformability of Composite Modified Ceramic Shell with Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg Series Mineralizer |
| title_full | High Temperature Anti-deformability of Composite Modified Ceramic Shell with Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg Series Mineralizer |
| title_fullStr | High Temperature Anti-deformability of Composite Modified Ceramic Shell with Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg Series Mineralizer |
| title_full_unstemmed | High Temperature Anti-deformability of Composite Modified Ceramic Shell with Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg Series Mineralizer |
| title_short | High Temperature Anti-deformability of Composite Modified Ceramic Shell with Y<sub>2</sub>O<sub>3</sub> and Al-Si-Mg Series Mineralizer |
| title_sort | high temperature anti deformability of composite modified ceramic shell with y sub 2 sub o sub 3 sub and al si mg series mineralizer |
| topic | composite mineralizer thermal expansion high-temperature self-loaded deformation mullite yttrium aluminum garnet |
| url | http://jme.biam.ac.cn/CN/Y2018/V46/I11/96 |
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