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The possible phase transformations of boron nitride in the Li–B–N system have been discussed by the chemical reactions of Li3N, hBN and cBN at the conditions of 5.0GPa and 1300–1500°C. The results of the reaction between Li3N and hBN shows that certain Li–B–N eutectic compound(s) which were produced in the thermodynamical stable region of cBN have no catalytic effect for cBN growth. It indicates that...
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