| 周宇豪,玄伟东,任兴孚,任忠鸣.电熔刚玉对硅基陶瓷型芯性能的影响[J].稀有金属材料与工程,2023,52(4):1396~1402.[Zhouyuhao,Xuanweidong,Renxingfu,Renzhongming.Effect of fused corundum on properties of silicon-based ceramic core[J].Rare Metal Materials and Engineering,2023,52(4):1396~1402.] |
| 电熔刚玉对硅基陶瓷型芯性能的影响 |
| 投稿时间：2022-03-31 修订日期：2022-05-09 |
| 中文关键词: 陶瓷型芯 电熔刚玉 方石英 力学性能 |
| 基金项目:国家自然科学基金项目（项目号92060104），国家科技重大专项（项目号2017- VII-0008-0102），上海市科委项目（项目号20511107700）中国重燃项目（F095） |
| 中文摘要: |
| 以石英玻璃粉为原料，石蜡为增塑剂，添加0%~30%的电熔刚玉为矿化剂，通过热压注法成功制备了硅基陶瓷型芯，研究了电熔刚玉含量对方石英析晶和硅基陶瓷型芯综合性能的影响。结果表明:随着电熔刚玉含量的增加，样品的收缩率逐渐增加，气孔率先减小后增大，致密化程度增加；而抗弯强度和高温抗蠕变性能呈现先增强后减弱的趋势。当添加10%电熔刚玉时，样品表现出优良的综合性能，收缩率为1.02%，气孔率为20.91%，体积密度为1.7083g·cm3，室温和高温抗弯强度分别为14.83MPa和20.96 MPa，高温挠度为0.39mm。 |
| Effect of fused corundum on properties of silicon-based ceramic core |
| 英文关键词:ceramic core fused corundum cristobalite mechanical properties |
| 英文摘要: |
| In order to study the effect of fused corundum content on properties of silicon-based ceramic cores, the ceramic cores with different amount of fused corundum(0%~30%) were prepared by the hot injection method, where quartz glass powder was used as raw materials, fused corundum as mineralizer, and the ceramic casting wax as the plasticizer. The results showed that with the increase of fused corundum, the shrinkage of the samples increased gradually, the porosity decreased at first and then increased, resulting in the higher degree of densification, while the flexural strength and high temperature creep resistance were falling after firstly climbing. When 10% fused corundum was added, the sample showed excellent comprehensive properties, with a shrinkage of 1.02%, a porosity of 20.91%, a bulk density of 1.7083 g·cm3, a bending strength of 14.83MPa and 20.96 MPa at room temperature and high temperature, and a high temperature deflection of 0.39 mm. |
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