Regenerating polytetrafluoroethylene based composits with warm forging method 粉末溫壓法再生填充聚四氟乙烯復合材料的研究
The hardness of the parts made of composits was higher than that of the parts made of the matrix alloys . but the hardness of both kinds was higher than their ingots respectively 復合材料壓鑄件的布氏硬度比基體合金壓鑄件的布氏硬度高,兩類壓鑄件的布氏硬度分別高于相應鑄錠的布氏硬度。
Europe has accumulated some experience in manufacture and applications particularly military and space applieations of ceramic matrix composits, but lags behind japan and the u . s . a, in the overall technological level; it must import the ceramic fiber reinforcements from the latters 摘要歐洲在長纖維增強復合材料的制造和應用特別是軍事和航太中的應用方面擁有一定的經(jīng)驗,但總的技術水平不及日本和美國,其所用陶瓷增強纖維需從日本和美國進口。