【正文】
Application of PMC ?強度高、質量輕、使用方便、防腐、耐水、使用壽命長、綜合性能高、節(jié)省能源、成本低、成型性能好。 Si3N4基復合材料 ?特點:具有優(yōu)異的耐熱性、耐熱沖擊性、熱性和耐磨性; ?應用:作為耐磨材料可以減輕磨損,在汽車中得到了良好的應用效果;在重油、原油火力發(fā)電機的火焰噴嘴中得到了應用。 Other advantages ?Higher strength ?Less creep ?Enhanced abrasion resistance ?Reduced density ?Thermo properties Application of CMC ?與鈦和不銹鋼等金屬材料相比: 質量輕、耐腐蝕、熱穩(wěn)定性好、線膨脹系數(shù)小。看起來不大的防護頸托,卻是一個技術難度很大的項目。 美國校車車聲也極度堅固,內部都是特殊加固的 前后左右全部加裝防撞鋼梁,特殊加厚鋼板,窗戶上全部裝的防彈玻璃,美國一輛校車價格都在幾十萬美金! 而要知道美國豐田凱美瑞轎車等中檔轎車在美國的售價只要 , 而一輛Lexus豪華 SUV也只要 5萬美元。 Advantage of using reinforcing filler ?Increased strength, increased stiffness, heat resistance, heat conductivity, increased impact strength, reduced cost, stability, wet strength, fabrication mobility, viscosity, abrasion resistance, shrinkage, exothermic heat, thermalexpansion coefficient, porosity, crazing, surface appearance… disadvantages ?They may limit the method of fabrication, inhibit curing of certain resins, and shorten the pot life (存儲期 ) of the resin. Application of posites ?Application of MMC ?Application of CMC ?Application of PMC Application of MMC ?The most obvious advantage of MMC to metal? Stiffness What protect against such a crash? ?有人形容美國的校車是