材料科學(xué)與技術(shù)7(2)-文庫(kù)吧資料
2025-05-13 18:01本頁(yè)面
【正文】 客車(chē)的設(shè)施、卡車(chē)的骨架，安全性是普通車(chē)輛的 40倍。其特征也因原材料而有所差別。 ?復(fù)合材料的總體性能優(yōu)于各單獨(dú)組分材料，并在某些方面可能具有獨(dú)特性能。一般其中一種為連續(xù)相，另一種為功能增強(qiáng)相。 ?改進(jìn)的定義：復(fù)合材料是由兩種或兩種以上物理和化學(xué)性質(zhì)不同的物質(zhì)采用適當(dāng)?shù)墓に嚱M合而成的一種多相固體材料，而且這種多相固體材料的性能比單一材料的性能優(yōu)越。Material Science and Technology Wang Fang An yang Institute of Technology Chapter 7. Composites 復(fù)合材料 Classification of Materials 材料 實(shí)例 優(yōu)點(diǎn) 缺點(diǎn) 金屬材料 鋼鐵 無(wú)機(jī)非金屬材料 普通玻璃 聚合物材料 塑料 硬度大易加工 易被腐蝕 抗腐蝕耐高溫 易破碎 耐腐蝕 易老化 不耐高溫 Motivations ? It has always been the hope to produce structural materials possessing both great ductility and extreme strength. ? Strength provides load carrying capability while ductility prevents sudden failure. ? Strength and ductility tend to be inpatible properties of simple, homogeneous materials. ? The idea of bining different materials seems to be a effective way. Mechanism ? Manmade posites are advantageous mechanically in that they typically bine the ductility and toughness of some matrix material with the load carrying ability of some introduced strong fibers or particles. ? Unlike metal alloys, the matrix and reinforcement do not interact chemically. ? Structural posites often have superior strengthtoweight and/or stiffnesstoweight ratios pa
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