Development of accelerated corrosion test method for display or storage materials of cultural heritage using metal thin film sensors

Research Project

Project/Area Number	15K12441
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Cultural assets study and museology
Research Institution	Tokyo National University of Fine Arts and Music
Principal Investigator	Tsukada Masahiko 東京藝術大学, 大学院美術研究科, 准教授 (60265204)
Co-Investigator(Kenkyū-buntansha)	桐野文良東京藝術大学, 大学院美術研究科, 教授 (10334484)
Research Collaborator	KLEIN Levente IBM Research Center, Research Scientist SCHROTT Alejandro IBM Research Center, Research Scientist
Project Period (FY)	2015-04-01 – 2018-03-31
Project Status	Completed (Fiscal Year 2017)
Budget Amount *help	¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000) Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords	保存科学 / 文化財科学 / 材料試験 / 加速腐食試験 / 金属薄膜センサー
Outline of Final Research Achievements	As a test method of long-term stability of materials used for display and/or storage of cultural heritage, the application of metal thin film sensors at high relative humidity environment without the risk of condensation for the accelerated corrosion test method was evaluated. While in the conventional test condition relative humidity within a test container was kept at 100% almost always during the entire test period and the condensation was occurred at high frequency on metal coupons used for the test evaluation, the application of aqueous glycerol solution allowed to conduct the accelerated corrosion test at high relative humidity below 100% without the risk of condensation, although a strict control of relative humidity value was not achievable. Also the application of metal thin film sensors showed a possibility to conduct the test which gives an objective data on the extent of corrosion and to evaluate the long-term stability of materials.