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110年 - 110 國立臺北科技大學_碩士班招生考試_材料科學與工程研究所:材料科學與工程導論#108255
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6. How are the following factors that affiect the recrystallization pro ocess in metals?
(a) the degree of deformation (3%)
相關申論題
(b) the initial grain sizc (3%)
#464536
(c) the purity of the metal (3%)
#464537
(a) Describe the austempering process for a plain-carbon steel. (4%)
#464538
(b) Draw an isothermal transformation diagram with a cooling curve for an austem mpered austenitized eutectoid plain-carbon steel. (4%)
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(c) What is the microstructure produced after austempering a cutectoid plain-carbon steel? (2%)
#464540
(a) Draw the unit cell of a CsCI crystal structure. (3%)
#464541
(b) Calculate the density in grams per cubic centimeter of CsBr, which has the CsC1 structure. (8%) Ionic radi are Cst = 0.165 nm and Br = 0.196 nm, atomic weights a ights are Cs = 132.9 g/mol and Br = 799 g/mol, Avogadro's number = atonvmol.
#464542
(a) Draw and describe the structure of a planar npn bipolar transistor. (6%)
#464543
(b) Describe the flow of charge carriers when an npr bipolar junction transistor during the normal operation. (6%)
#464544
二、 問答題 1. 在金銀細工的設計範圍裡,運用石膏模鑄造的機會很多,尤其在量產時,配合橡皮模的射蠟成型,是許多設計師喜歡使用的加工方式,請簡述石膏模鑄 造之流程。(15%)
#464545
相關試卷
110年 - 110 國立臺北科技大學_碩士班招生考試_材料科學與工程研究所:材料科學與工程導論#108255
110年 · #108255