Print Email Facebook Twitter Indentation hardness, plasticity and initial creep properties of nanosilver sintered joint Title Indentation hardness, plasticity and initial creep properties of nanosilver sintered joint Author Zhang, H. (TU Delft Electronic Components, Technology and Materials; Harbin University of Science and Technology) Liu, Y. (TU Delft Electronic Components, Technology and Materials; Harbin University of Science and Technology) Wang, Lingen (Boschman Technologies) Sun, Fenglian (Harbin University of Science and Technology) Fan, Xuejun (Lamar University) Zhang, Kouchi (TU Delft Electronic Components, Technology and Materials) Date 2019-03 Abstract The nanoindentation test was conducted in this paper to investigate the indentation hardness, plasticity and initial creep properties of pressure sintered nanosilver joint at various test temperatures. The effects of strain rate on the indentation hardness were first investigated. Then yield stress of nanosilver sintered joint was studied in various pressures sintered joints and the corresponding plastic stress-strain constitutive equations were gained. The maximum indentation depth of nanosilver sintered joint was obviously affected by the test temperature and sintering pressure. The indentation hardness of nanosilver sintered joint decreased with increasing test temperature from 140 to 200°C, which can be attributed to the increased amount of thermal vacancies at high temperatures. However, the indentation modulus exhibited decrease trend as the temperature increased. It is suggested that the distance between adjacent atoms was enlarged at elevated temperatures and furtherly resulted in the decrease of indentation modulus. In addition, the increased sintering pressure from 5 to 30 MPa improved the indentation hardness and modulus of sintered joint. The initial creep was observed in nanosilver sintered joint at temperatures ranged from 140 to 200°C. The increase of sintering pressure improved the resistance to creep of nanosilver sintered joint. Subject Indentation hardnessInitial creepNanosilverPlastic deformationSintering pressureOA-Fund TU Delft To reference this document use: http://resolver.tudelft.nl/uuid:7d912f69-47d5-4f2e-9f8c-b6a6721adb55 DOI https://doi.org/10.1016/j.rinp.2018.12.026 ISSN 2211-3797 Source Results in Physics, 12, 712-717 Part of collection Institutional Repository Document type journal article Rights © 2019 H. Zhang, Y. Liu, Lingen Wang, Fenglian Sun, Xuejun Fan, Kouchi Zhang Files PDF 49468647_1_s2.0_S22113797 ... 8_main.pdf 1.97 MB Close viewer /islandora/object/uuid:7d912f69-47d5-4f2e-9f8c-b6a6721adb55/datastream/OBJ/view