The FGM Concept in the Development of Fiber Cement Components
The FGM Concept in the Development of Fiber Cement Components
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DOI：
10.1063/1.2896834
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发表时间：
2008-02
期刊：
影响因子：
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通讯作者：
C.M.R. Dias;H. Savastano;V. John
中科院分区：
文献类型：
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作者：
C.M.R. Dias;H. Savastano;V. John
FGM概念在改善纤维水泥建筑构件的机械性能和降低生产成本方面似乎很有希望。然而，它尚未广泛应用于纤维水泥技术。在本研究中，我们分析了功能分级纤维水泥的概念及其在Hatschek机器上的工业应用潜力。总结了传统的Hatschek工艺，并提出了允许FGM纤维水泥生产的修改建议。实验评价了通过分级PVA纤维含量生产功能级配纤维水泥的可行性。热重（TG）和扫描电镜（SEM）分析评价了纤维的分布。采用四点弯曲试验来评估常规和功能梯度复合材料的力学性能。结果表明，对PVA纤维含量进行分级是生产功能级配纤维水泥的有效途径，可在不影响纤维体积的情况下减少纤维总体积。
The FGM concept appears promising in improving the mechanical performance and reducing production costs of fiber cement building components. However, it has not yet been broadly applied to fiber cement technology. In this study we analyze the functionally graded fiber cement concept and its potential for industrial application in Hatschek machines. The conventional Hatschek process is summarized as well as the proposed modifications to allow FGM fiber cement production. The feasibility of producing functionally graded fiber cement by grading PVA fiber content was experimentally evaluated. Thermogravimetric (TG) and Scanning Electron Microscope (SEM) analysis were used to evaluate fiber distribution profiles. Four‐point bending tests were applied to evaluate the mechanical performance of both conventional and functionally graded composites. The results shows that grading PVA fiber content is an effective way to produce functionally graded fiber cement, allowing the reduction of the total fiber volume witho...