Suslov - Q5 (Friday) - MSE 230 QUIZ # 5 (30pts) 10 min...

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Unformatted text preview: MSE 230 QUIZ # 5 (30pts) 10 min Name: K9? Score: 1. Using the plot below find the following: a. The working point for borosilicate glass. b. The annealing point for fused silica glass. c. What is the optimal range of temperatures to perform glass-forming operation with a soda- lime glass? Temperature?” 400 800 1200 1600 2000 2400 2800 3200mm 0 3 . . , a‘ C (0 [90‘ S 96%silica Fused 1o" ) glass silica . i ,A .i ,_.sminp°m_ , 1014 0 il b) Mme (1)10 Pas a) ?—00°C " 4000 CC 1012 Viscosity (Pa-s) Working range I 106 m. 200 400 600 800 1000 1200 1400 1600 1800 TemperaturePC) 2. Al203 and ZrOz form a binary eutectic with no solid solubility. Sketch a binary eutectic phase diagram for this system on the axes provided. 2700 °C 2054 00 17100:: Al203 ZrOz 3. TRUE/FALSE: a) In NaCl, a good example of covalent bonding, the sodium atom loses an electron, and the chlorine atom gains an electron. TRUE b) Concrete is a (metal / ceramic/ polymer / semiconductor) Circle one c) Crystalline ceramics are brittle at room temperature because they do not contain dislocations TRUE 4. CONCEPT QUESTIONS: a) Would you expect a crystalline ceramic material to strain harden at room temperature? Why or why not? No it Wall/J twi' be QLIDCCII’QJ. In orderfor‘a “fiend +0 5mg“ loci/aw) ;+ mug-IL be mama/g» 4%,»,“24/ mag a .6 WW3 We fiV/We ax?‘ fW/fi Mama/Q WWW/ml? {eflfe W fl/ag‘z'c 0/90” b) Would you expect grain growth to occur in ceramic materials? Why or why not? My [7468' Val ffqu M (9m :9ch [a (garb/me ceramic; { éraru W Mtec/ W Ae fl/Zcea/eg/ % fWfl/Q/flzaxfllba . @Iya‘zz/fu Waltz may We finial MW fmflq w/// W W M owe/g6 '4 Had “07/ WW6 if 77“ WW L; heafa/ 75> 6? 'c/‘ewv’gz by MW c) Would you expect grain growth to occur in all ceramic materials? Why or why not? w W)“ W Wf/7 fl! 2/ Wade/C W‘fl/J. / Mwwhfl/W WW do he?" We d) Would you expect it to be possible for ceramic materials to experience recrystallization? Why or why not? M9 [(9013 Ajay/0251,2404 /‘M bowl / it ae/cuw'c mafg/fagj / fl, order7é eye/2W WWW/awka/ ” Wfib/ WVVQKWL fa pégfi‘caé/ Wmd/ M defame/e WM are 4w 196% 7‘0 6’6, affirm, ...
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This note was uploaded on 04/03/2012 for the course MSE 230 taught by Professor Trice during the Spring '08 term at Purdue University-West Lafayette.

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Suslov - Q5 (Friday) - MSE 230 QUIZ # 5 (30pts) 10 min...

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