坚固的,生物启发的混合材料.
E Munch1, M E Launey, D H Alsem
1Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
概括
研究人员通过模仿自然结构,创造出一种强大,坚固的基于陶的复合材料. 这种生物灵感材料结合了氧化和聚甲基甲酸,具有与合金相似的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 生物模拟学是一种生物模拟学.
- 陶复合材料 陶复合材料
背景情况:
- 由于复杂的等级设计,天然复合材料表现出优越的强度和性.
- 合成复制这些自然结构用于先进材料已被证明是具有挑战性的.
- 模仿大自然的硬化机制是材料合成的一个关键目标.
研究的目的:
- 开发一种新的生物灵感陶基复合材料.
- 模仿自然的硬化机制,使用可访问的化合物.
- 在合成材料中实现高强度和折断性.
主要方法:
- 结合氧化和聚甲基甲基酸.
- 使用冰模板技术来创建等级结构.
- 描述机械性能,包括屈服强度和断裂性.
主要成果:
- 合成材料的性超过其成分的300倍.
- 达到大约200 MPa的承压强度和大约30 MPa的破裂性.m(1/2).
- 该材料的性能与合金的性能相当.
结论:
- 开发的模型材料成功模仿了大自然的硬化机制.
- 使用冰模板结构的生物灵感设计对于创建高性能复合材料是有效的.
- 确定了关键的微观结构特征,可以指导先进的陶基材料的未来合成.
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