2003年4月5～6日,由河南省科技厅组织的“刚玉氮化硅浇注块技术鉴定与推广会”在河南省郑州市召开,来自全国各炼铁企业、设计研究院(所)、大专院校及新闻媒体近60家单位的147名代表参加了会议。通过听取汇报、审查资料、进行质疑和答辩,经过认真讨论,认为由北京科技大学、巩义市中原耐火材料有限公司共同研制成功的刚玉氮化硅 From April 5 to April 6, 2003, “Identification and Promotion of Corundum Silicon Nitride Casting Block” organized by Henan Provincial Department of Science and Technology was held in Zhengzhou City, Henan Province. It was attended by various iron-making enterprises, design institutes, 147 delegates from nearly 60 units in universities, colleges and news media attended the conference. Through listening to the report, reviewing the information, conducting the challenge and defense, after careful discussion, it is believed that the successful research of corundum silicon nitride by Beijing University of Science and Technology, Gongyi Zhongyuan Refractory Co., Ltd.