Preparation method of Co3B/Ni2B double-hard block

• Main Authors: ZHANG RUI, YIN ZUN, HOU ZHAOTANG, WANG CAIXIA, WU XIAOJUN
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses a preparation method of a Co3B/Ni2B double-hard block, which comprises the following steps: 1) loading Co powder and B powder into a ball-milling tank, vacuumizing, filling argon, and ball-milling and mixing the powder; (2) filling Ni2B powder into a ball milling tank, vacuumizing, and filling argon; 3) putting the ball milling tank into a ball mill for ball milling to obtain mixed powder, and then filling the mixed powder into a graphite crucible; and (4) the graphite crucible is put into a plasma activation sintering furnace, vacuum pressure sintering is carried out at the temperature of 900-1000 DEG C, heat preservation is carried out for 5-10 minutes, then furnace cooling is carried out, and the Co3B/Ni2B double-hard-phase block is obtained and is good in service performance and low in preparation cost. 本发明公开了一种Co3B/Ni2B双硬质块体的制备方法，包括下述步骤：1)将Co粉及B粉装入球磨罐中，再进行抽真空后充入氩气，然后球磨混粉；2)将Ni2B粉装入球磨罐中，再进行抽真空后充入氩气；3)将球磨罐放入球磨机中球磨，得混合粉，再填充至石墨坩埚中；4)将石墨坩埚放入等离子活化烧结炉中，再在900℃-1000℃下进行真空压力烧结，并保温5-10分钟，然后随