| Answer | Crossword Clue |
|---|---|
| boral | a mixture of boron carbide and aluminum |
| borals | BORAL, a mixture of boron carbide and aluminum |
| thermite | mixture of finely-divided metallic aluminum and ferric oxide that when ignited produces extremely high temperatures as the result of the union of the aluminum with the oxygen of the oxide: used in welding, incendiary bombs, etc. |
