On the Strain Rate Sensitivity of Helium Plasma Treated Nano Silicon Dioxide Particles Sol-Gel Coati

• 作 者: YingChen.Zhang HaiYan Zhu HongYan.Wu Y.P.Qiu
• 机 构: State key lab for modification of chemical fibers and polymer materials;College of Textiles, Donghua
• 出 处: The 1st China International Symposium on Particles Technolog
• 发表日期: 2008年1期

　　The strain rate sensitivity of helium plasma treated nano silicon dioxide particles sol-gel coating UHMPE filaments (PTNSDPUHMPE) and simultaneous micro-structural evolution are investigated.The test results show that the materials are strain rate sensitive and the change in strain rate sensitivity index parameter with strain reflects the change in micro-mechanisms of deformation and modes of fracture.Deformation processes in PTNSDPUHMPE were predominantly characterized by craze-tearing and brittle mode of fracture.