Thermal shock behaviour of laminated multilayer refractories for steel casting applications reinforced by residual stresses
Thermal shock behaviour of laminated multilayer refractories for steel casting applications reinforced by residual stresses
复制标题
DOI：
10.1016/j.ceramint.2016.05.149
复制
发表时间：
2016-09
影响因子：
5.2
通讯作者：
D. Jakobsen;Wei Zhang;N. Doynov;A. Böhm;J. Malzbender;V. Michailov;A. Roosen
中科院分区：
文献类型：
--
作者：
D. Jakobsen;Wei Zhang;N. Doynov;A. Böhm;J. Malzbender;V. Michailov;A. Roosen
基于流延氧化铝和氧化锆基材的陶瓷多层结构已被制造用作无碳耐火材料。层压材料通过由于收缩失配或热膨胀差异引起的残余应力进行增强，以实现改善的热循环能力。在等离子体热冲击试验台上进行了热冲击试验，通过测量层合结构的杨氏模量和显微结构图像，研究了层合顺序和残余应力对热冲击性能的影响。通过劈裂试验分析了界面处的Hasselman参数和裂纹扩展行为。
Ceramic multilayer structures based on tape cast alumina and zirconia substrates have been manufactured for use as carbon-free refractory materials. The laminates were reinforced via residual stresses due to shrinkage mismatch or differences in thermal expansion in order to achieve an improved thermal cycling capability. Thermal shock tests have been carried out using a plasma test stand. The impact of layer sequence and residual stresses has been demonstrated via measurement of Young's modulus and microstructure images of the layered structures. Hasselman parameters as well as the crack propagation behaviour at interfaces have been analysed via wedge splitting test.