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首页> 外文期刊>Journal of Composite Materials >Cantilever creep method for testing ceramic composites and a case study for chemically bonded phosphate ceramic composites reinforced with glass, carbon and basalt fibers, including both experiments and simulations
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Cantilever creep method for testing ceramic composites and a case study for chemically bonded phosphate ceramic composites reinforced with glass, carbon and basalt fibers, including both experiments and simulations

机译：用于测试陶瓷复合材料的悬臂蠕变方法以及用玻璃，碳和玄武岩纤维增强化学键合磷酸盐陶瓷复合材料的案例研究，包括实验和模拟

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摘要

This paper presented the cantilever beam experiments and the method for creep in chemically bonded ceramics reinforced with glass, carbon, and basalt unidirectional fibers. The ceramic composite samples were fabricated by mixing wollastonite powder and phosphoric acid, through the resonant acoustic mixing technique. The reinforced fibers were added via pultrusion process. The manufactured materials were exposed to high temperature creep tests at 600, 800 and 1000celcius, with an annealing time of 1 h, all in air environment. Some examples of real large-scale structures made manually by a company were also included. In order to understand the microstructure, X-ray diffraction and scanning electron microscopy analysis were included. The presented method is simple and can be used in any inorganic ceramic slurry types, such as geopolymers, phosphate cements, clay-based materials, or Portland cement composites. The sample response in high temperature creep experiments was analyzed with a new but very simple technique, and modeled using finite element analysis over all compositions. Results revealed that fibers have a significant effect on the composite creep when compared to the ceramic without reinforcement, and particularly carbon fibers showed a quite interested effect in reducing the creep effects. Results show the limit of the materials under conditions typically found in fires and other extreme environments.
机译：本文介绍了悬臂梁实验和用玻璃，碳和玄武岩单向纤维增强化学粘结陶瓷中的蠕变方法。通过谐振声混合技术将硅铁矿粉末和磷酸混合来制造陶瓷复合样品。通过拉挤法加入增强纤维。将制造的材料暴露于600,800和1000celcius的高温蠕变试验，退火时间为1小时，全部空气环境。还包括一家公司手动制作的真正大规模结构的一些例子。为了理解微观结构，包括X射线衍射和扫描电子显微镜分析。呈现的方法简单，可用于任何无机陶瓷浆料类型，例如地质聚合物，磷酸盐水泥，粘土基材料或波特兰水泥复合材料。用新的但非常简单的技术分析高温蠕变实验中的样品响应，并在所有组合物上使用有限元分析进行建模。结果表明，与无需增强的陶瓷相比，纤维对复合蠕变具有显着影响，特别是碳纤维在降低蠕变效应方面表现出相当感兴趣的效果。结果显示了通常在火灾和其他极端环境中发现的条件下材料的极限。

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