国家/地区 中国（2）
IPC部 B（2）
IPC大类 B22（2）
IPC小类 B22F（2） C22C（2） C23C（2）
IPC B22F009/04（2）
发明人 ZHANG C（2）
公开年 2021（2）
申请年 2021（2） 
专利权人

Increasing nitrogen content of vanadium iron nitride used for e.g. high-strength thread steel, involves mixing vanadium source, carbonaceous reducing agent, iron powder, and tin dioxide, ball milling, vacuumizing, introducing mixed gas of nitrogen and ammonia and heating.

ZHANG C

Preparing shape memory alloy based composite smart material used in e.g. electronic communication and civil building field comprises e.g. adding carbon black, graphene, carbon particle, carbon nanofiber or carbon nanotube to shape-memory alloy mixture powder, mixing and drying mixed material.

WEI T, ZHANG C, HU Y, SU C, YANG J