Na2B4O7对离心SHS陶瓷内衬复合钢管压剪强度的影响

Na₂B₄O₇对离心SHS陶瓷内衬复合钢管压剪强度的影响

详细信息

摘要: 研究了Na₂B₄O₇添加剂对Fe₂O₃+Al体系离心SHS陶瓷内衬钢管压剪强度的影响。结果表明,添加Na₂B₄O₇后,Al₂O₃和Fe两相之间的界面张力降低,导致Al₂O₃和Fe两相在离心力作用下分离不彻底和润湿性改善,结果陶瓷衬管的压剪强度显著提高
- 自蔓延高温合成 /
- 复合钢管 /
- 压剪强度
Abstract: The effect of Na₂B₄O₇ additive on compression-shearing strength of ceramic-lined pipe produced by centrifugal-SHS process is studied. It is showed that the interfacial tension between Al₂O₃ and Fe drops with Na₂B₄O₇ as an additive. Accordingly, Al₂O₃ and Fe separate deficiently under the limited centrifugal force. Besides, the wettability between Al₂O₃ and Fe is improved. As a result, the compression-shearing strength is improved markedly.
- SHS /
- Composite pipe /
- Compression-shearing strength