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Abstract:
The solid state phase equilibria of the system Zr-W-B at 1400 C and the phase equilibria in the melting range for the four pseudobinary systems: ZrB2-W2B5-ZrB2-WB, ZrB2-W2B and ZrB2-W have been investigated using X-ray technique, melting point determinations and metallographic examinations. At 1400 C, the intermetallic phase ZrW2 and the four tungsten-boron intermediate phases were found to be in equilibrium with ZrB2. Two ternary phases, one possibly stable only at high temperatures, were indicated to exist in this system. The pseudobinary system, TaB2-HfB2 forms a series of continuous solid solutions. The melting points increase smoothly from pure TaB2 to HfB2. (Author)
| Description: |
Technical rept. |
| Pages: |
26 |
| Report Date: |
FEB 1966 |
| Contract Number: |
615, AF336151249 |
| Report Number: |
0041984 |
Report Unavailable |
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