Evaluation of adhesion quality and durability of die mold releasing agent for glass press molding at high temperature

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K21354
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials; Composite materials/Surface and interface engineering
• Research Institution: Kindai University (2016); Aoyama Gakuin University (2015)
• Principal Investigator: ITO Hiroaki 近畿大学, 工学部, 講師 (70534981)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 密着性状 / 金型離型膜 / ガラス成形 / 耐久性 / 熱応力 / レーザ超音波

Outline of Final Research Achievements

To evaluate adhesion quality of diamond-like carbon (DLC) film for the life prediction of the die for glass press molding, laser spallation technique, thermal shock test and indentation test were carried out. Cyclic thermal shock test was useful to evaluate the adhesion quality and surface damage of the DLC film at high temperature, and was possible to estimate the influence of the intermediate layer structure on the adhesion quality. In the indentation test, the adhesion quality of the DLC film at high temperature up to 300℃ was decreased with temperature increasing. The cyclic number to crack initiation for the sample in 300℃ was smaller than that in room temperature.

Free Research Field

材料力学，超精密加工