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反常霍尔-佩奇效应
释义
反常霍尔-佩奇效应
Encyclopedia
理学
纳米晶体材料力学
释
abnormal Hall-Petch relationship
反常霍尔-佩奇效应
当金属材料特征结构尺寸(通常指晶粒尺寸)低于某一临界尺寸(十几或几纳米)时,随特征结构尺寸的减小,材料硬度(或强度)保持不变或不断降低的现象。又称反常霍尔-佩奇现象。通常情况下,随金属材料特征结构尺寸的减小,材料硬度(或强度)不断增加的现象,称为霍尔-佩奇现象。
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disaster-causing force
disaster chain
disaster-control construction and facilities
disaster emergency
disaster film
disaster from snow and ice
disaster management cycle
disaster mechanism analysis of civil engineering
disaster medicine
disaster mitigation line
disaster mobilization
Disaster Monitoring Constellation
disaster monitoring in civil engineering
disaster of tunnel boring machine
disaster-pregnant environment
disaster preparedness
disaster preparedness and emergency response
disaster prevention and mitigation zoning map
disaster prevention facilities
disaster prevention of civil engineering
disaster prevention of underground space
disaster-prevention route
disaster protection & reduction and protective engineering
disaster recording and dynamic monitoring
disaster recovery
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