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est thermal conductivity of any known materials.2. Ceramics are stronger in pression than in tension, whereas metals have parable tensile and pressive strengths.3. Ceramics generally have low toughness, although bining them in posites can dramatically improve this property.4. The functions of ceramic products are dependent on their chemical position and microstructure, which determines their properties.Unit13:聚合物合成 天然聚合物材料單體特性 生物合成鏈長(zhǎng) 持續(xù)(余輝)長(zhǎng)度1. 盡管聚合物在通用意義上一般指塑料,這個(gè)術(shù)語(yǔ)實(shí)際上也包含一大類天然和合成材料,這些材料有不同的性質(zhì)和用途。3. 它們表現(xiàn)出優(yōu)異的力學(xué)性能、抗氧化腐蝕性能、或者電學(xué)、光學(xué) 磁學(xué)性能。Combining different ratios of metals as alloys modifies the properties of pure metals to produce desirable characteristics.Unit10:原材料的提純 長(zhǎng)鏈烷烴玻璃燒杯 粘性液體火花塞絕緣子 玻璃陶瓷計(jì)算機(jī)輔助過(guò)程控制 表面分析方法1. 我們將審視幾個(gè)性質(zhì),會(huì)看到這些性質(zhì)與我們對(duì)陶瓷構(gòu)成的預(yù)判是何等匹配啊。Metals in general have superior electric and thermal conductivity, high luster and density and the ability to be deformed under stress without cleaving. 合金是指兩種或兩種以上的元素形成的固溶體混合物,其中主要組分為金屬。3 漢譯英delocalized electrons electrical structurealkaliearth metals electro chemical cellnuclear charge electrical conductivity金屬有時(shí)被描述為由游離電子團(tuán)包圍的正離子晶格。3. 共價(jià)鍵晶體只有打破原子間價(jià)