Question 62 · LDEK · Prosthodontic materials
Which properties of titanium alloys are causing the difficulty in their casting?
1) high biocompatibility;
2) low density;
3) high reactivity with oxygen and nitrogen;
4) high melting temperature;
5) low thermal conductivity coefficient.
The correct answer is:
2) low density;
3) high reactivity with oxygen and nitrogen;
4) high melting temperature;
5) low thermal conductivity coefficient.
The correct answer is:
- A. 1,2,3.
- B. 2,3,4.
- C. 3,4,5.
- D. 1,4,5.
- E. 2,4,5.
Hint
Think about how well molten titanium fills a mould, how it reacts at high temperature and what its melting point demands of the equipment.
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