一种用于测量材料在外磁场和电场中局部力学性能的多场纳米压痕装置
Multi-field nanoindentation apparatus for measuring local mechanical properties of materials in external magnetic and electric fields
摘要：
多铁性材料的纳/微米尺度力学性能可以通过外加磁场或电场的耦合作用来控制。首次构建了一种模块化的多场纳米压痕装置，用于在静磁场/静电场中对材料进行测试。技术问题，如磁场/电场的应用和过程，以减少外部场和设备的其他部分之间的干扰，得到解决。对标定试件的测试表明了该装置的可行性。铁磁、铁电和磁电材料在有/无外场作用下的载荷-位移曲线揭示了小尺度的磁力和机电耦合，表现为Delta-E和Delta-H效应，即磁场/电场引起的表观弹性模量和压痕硬度的变化。
英文摘要：
Nano/micro-scale mechanical properties of multiferroic materials can be controlled by the external magnetic or electric field due to the coupling interaction. For the first time, a modularized multi-field nanoindentation apparatus for carrying out testing on materials in external magnetostatic/electrostatic field is constructed. Technical issues, such as the application of magnetic/electric field and the processes to diminish the interference between external fields and the other parts of the apparatus, are addressed. Tests on calibration specimen indicate the feasibility of the apparatus. The load-displacement curves of ferromagnetic, ferroelectric and magnetoelectric materials in the presence/absence of external fields reveal the small-scale magnetomechanical and electromechanical coupling, showing as the Delta-E and Delta-H effects, i.e. the magnetic/electric field induced changes in the apparent elastic modulus and indentation hardness.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
