Method for degassing and long-term preservation of B4C/Al neutron absorbing material blank

The invention relates to a method for degassing and long-term preservation of a B4C/Al neutron absorbing material blank. According to the method, the preservation time of a composite material powder blank can be significantly prolonged, preservation means are simplified so that the powder blank can be easier to store, the production connection barrier between batching and sintering caused by the preservation difficulty of the powder blank can be eliminated, the overall production efficiency is improved, the gases such as O2 and H2O adsorbed in the powder blank are removed, the powder blank preservation environment is obviously isolated from the warehouse environment so that the powder blank can be preserved for a long time and with high quality, and a high density, high performance neutronabsorbing composite material can be produced. 本发明涉及种BC/Al中子吸收材料坯体除气及长期保存方法，能明显延长复合材料粉坯保存时间，并简化粉坯的保存手段，使其更易于库存，消除粉坯不易保存造成的配料与烧结之间的生产连接障碍，提高总体生产效率。本发明中的种BC/Al中子吸收材料坯体除气及长期保存方法，能除去粉坯中吸附的O、HO等气体，明显隔离粉坯储存环境与仓库环境，使得粉坯可长时间、高质量的保存，进