A Scotty defect in Al_2 O_3 would consist of: One A1 vacancy and one Al intersti

Question

A Scotty defect in Al_2 O_3 would consist of: One A1 vacancy and one Al interstitial Two Al vacancies and three O Vacancies Two Al vacancies and three Al interstitials One Al vacancy and one O vacancy None of the above Which of the following is NOT a factor that determines the degree to which a substitutional solid solution occurs? Atomic size Crystal structure Melting Point Valences Electronegativity Which of the following would you expect to have the fastest diffusion rate? Vacancy diffusion in ceramics Interstitial diffusion in metals Vacancy diffusion in metals Cation diffusion in ceramics Which of the following is best suited to examine an atomic packing defect in material? Optical microscope Scanning electron microscope Transmission electron microscope Visual Inspection Which of the following defects is specific for ionic crystals? Edge dislocations Frankel defects Interstitials Chain ends Grain boundaries

Explanation / Answer

a1. answer d, one aluminium ion vacancy and one oxygen vacancy

a2. answer: c melting point

a4. transmission electoron microscope is widely used to examine defetcs highest atomic packcing density materials.

a5. frankel defetcs ,B

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.