'Nitrides of boron & silicon are  used to make crucibles because they are stable when this is high'
temperature
THE CRUCIBLE: Nitrides of boron & silicon are  used to make crucibles because they are stable when this is high
Nitrides of boron & silicon are  used to make crucibles because they are stable when this is high
Nitrides of boron & silicon are  used to make crucibles because they are stable when this is high
THE CRUCIBLE
temperature
THE CRUCIBLE