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A novel solid-state reaction was investigated to achieve nanosized ZrB2 particles using ZrO2 and NaBH4 as starting materials, which were dry mixed and thermally treated at increasing temperatures and B:Zr molar ratio to get a complete oxide to boride conversion. X-ray diffraction analysis showed that the reaction was completed after 30min at 900°C. Field-emission scanning microscopy revealed ZrB2...
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