材料科學(xué)與工程專業(yè)英語1-19單元課后翻譯答案-資料下載頁
2025-06-19 17:48本頁面
【正文】 material 6. A posite is monly defined as a bination of two or more distinct materials, each of which retains its own distinctive properties, to create a new material with properties that cannot be achieved by any of the ponents acting alone. 7. Carbonepoxy posties are two thirds the weight of aluminum, and two and a half times as stiff. Composites are resistant to fatigue damage and harsh enviroments, and are repairable. 8. According to the conception of posite , reinforced plastics, metalmatrix posites, ceramicmatrix posites and concrete are posites. 9. In fiberreinforced posites, the fiber is the primary loadbearing ponent. Fiberglass and carbon fiber posites are examples of fiberreinforced posites. Unit 17 1. 震蕩、撞擊或者重復(fù)的周期性應(yīng)力能導(dǎo)致兩層的界面處發(fā)生薄層分離，這種 情況叫剝離。 2. 3. 事實(shí)上，工業(yè)材料既要質(zhì)輕又要牢固的要求是推動(dòng)復(fù)合材料發(fā)展的主要?jiǎng)?力。 4. 提到飛機(jī)，值得銘記的是復(fù)合材料不像金屬（如鋁）那樣在壓力的作用下會(huì)完全解體。 5. orthotropic thermoset Thermoplastic Young’s Modulus Mechanical property constants extreme enviroment 6. In contrast, isotropic material ( for example, aluminuim or steel), in standard wrought forms, typically have the same stiffness regardless of the directional orientation of the applied forces and /or moments. 7. The greatest advantage of posite materials is strength and stiffness bined with lightness. 8. This makes them ideal for use in products thar are exposed to extreme enviroments such as boats, chemicalhandling equipments and spacecrafts. 9. Composites will never totally replace tranditional materials like steel, but in many cased they are just what we need. Unit 18 1. 具有相分離的聚合物共混材料經(jīng)常出現(xiàn)納米尺度的相。 2 在過去幾十年里研究的基于溶膠凝膠化學(xué)的有機(jī)無機(jī)納米復(fù)合材料已基本淡出納米復(fù)合材料的研究。 3. 理解粒子的性質(zhì)隨著尺寸降低到納米級(jí)別而發(fā)生改變，這對(duì)于優(yōu)化所得到的納米復(fù)合材料很重要。 4. 廉價(jià)石墨的生產(chǎn)尚未實(shí)現(xiàn)，石墨的廣泛使用嘔待石墨合成技術(shù)的突破。 5. electrooptical property bactericidal property Block copolymer interfacial phenomena Exfoliated graphene morphology control 6. The field of nanotechnology is one of the most popular areas for current research and development in basically all technical discillines. 7. Nanoscale is considered where the dimensions of the particle, platelet or fiber modification are in the range of 1～100nm. 8. These improvements are key to future aircraft and wind energy turbine applications. 9. Nanostructured surfaces have been noted to yield superhydrophobic character and exceptional adhesion.Unit19： 納米結(jié)構(gòu)材料 制造過程 表面積/體積比(比表面積) 納米尺度 球半徑 光電器件 伯氏矢量 釘扎點(diǎn) 1. 大多數(shù)生物分子和其他生物材料是納米尺寸的，因此納米尺度提供了一個(gè)研究這些生物 分子、材料和其它材料發(fā)生交互作用的最佳機(jī)會(huì)/手段。 2. 不管納米材料性質(zhì)和它們的制作過程如何，納米材料許多奇異、甚至令人興奮的性質(zhì)可 以歸結(jié)為一個(gè)簡單道理：如果材料/結(jié)構(gòu)的尺度接近納米時(shí)，物理性質(zhì)和化學(xué)性質(zhì)將發(fā)生巨大的變化。 3. 這對(duì)納米材料的光學(xué)性質(zhì)產(chǎn)生巨大的影響：例如吸收光譜又紅外向可見光區(qū)域移動(dòng)。 4. 另外一種磁學(xué)上的納米效應(yīng)是所謂的巨磁電阻效應(yīng)，已經(jīng)被用來制作磁存儲(chǔ)器件。 5. 根據(jù)這個(gè)方程可知：預(yù)置裂紋越小，臨界應(yīng)力越高。 Nanotechnology interdisplinary subject Twodimentional nanostructure critical length Surface tention thermal motion Selforganization brittle failure 1. Nanotechnololgy deals with materials with dimensions in the nanometer range. 2. If the dimensions of materials approach the nanoscale, three amazing effects e to play a role.(Materials will possess three new effects/properties, which the original ones do not have.) 3. Nanotechnololgy consists of nanoeletronics, nanomechanics and nanomaterials, etc.. 4. The hardness of nanocrystalline copper is five times higher than that of microcrystalline one.
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