This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Name: __+5 0 L LG? 0 US #6- go/M SID: QUIZ 3
MAE 20, Elements of Materials Science, Summer, 2008 (l)
(a) What elements are added to make stainless steel? Why is stainless steel stainless? .,, aw“ [mm max), N: M Ma Ma mam/9 Manx. @Fh' -——:» Ckmrwétzm fun: A 11714.9 lg’dmow/ Fake“ mod! 16?.» an.
[ii/$3212 ,r‘YWf (A’mecon Pay/W (13) Write down two applications of stainless steels. ' ---'5 (fie/Wei Xingu! pecans/’7' W
v—a mm M 1,”;be momma @‘ﬂa'
-—-) Adi/(Day (2) (a) Distinguish between Schottky and Frenkel defects? 5W Olga" -4 W Vet-CM? aw! [QM-cm uacmﬁ IOA/R. @P’h
Em A? a W Vice-‘3 M WWW/AM. (b) Give a possible reason why ceramic materials eould generally be non-stoichiometn’c? (e.g., NaCl could always be contaminated with Calcium) @ Pt,
Wals- (3) (a) What is the difference between a therm0plastic polymer and a thermoset polymer? A ‘Hxﬂmﬂlﬂohc COM [99. WW avgwcrx MYIS‘LE7 M WM, 04‘) M W [/Wl—a/I’VC dz.) .ft"
)6} wwwosd's Ldadav a; merroéé Uta. W
333' Ualcamxéd MW/ efoxém dz. (b) Why are polymers moisture sensitive? (c) On an engineering stress— engineering strain diagram, depict the mechanical behavior of a: (1) Brittle polymer, (2) Thermoplastic polymer, and (3) Elastomer. s 0)
Q.) (69% ...
View Full Document
- Summer '08