Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Chung-Seog Oh"'
Autor:
Won-Jon Yang, Chung-Seog Oh
Publikováno v:
Journal of the Korean Society for Precision Engineering. 39:363-369
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 113:1153-1162
A hybrid manufacturing method consisting of micro-electrical discharge machining and focused ion beam milling to fabricate single-crystal Cu micropillars with a diameter of several tens of microns or more was proposed. The method first utilized micro
Autor:
Takashi Sumigawa, Bongkyun Jang, Chung-Seog Oh, Hak-Joo Lee, Byungwoon Kim, Takayuki Kitamura, Alexander E. Mag-isa, Jae-Hyun Kim
Publikováno v:
Extreme Mechanics Letters. 14:10-15
Due to the atomistic thinness of graphene, it is non-trivial to measure fracture behaviors of freestanding graphene without any underlying materials. In this study, we present a methodology for measuring the fracture behavior of freestanding natural
Publikováno v:
Materials Today Communications. 25:101387
The in-plane coefficient of thermal expansion (CTE) of freestanding multilayer pristine graphene was directly measured by the thermal bulge method using a white light interferometric microscope. Graphene ribbons with 3, 5, and 10 layers were prepared
Publikováno v:
Materials Letters. 171:312-314
The in-plane coefficient of thermal expansion (CTE) of freestanding single-crystal natural graphite was directly determined using the thermal bulge method. The Scotch tape method was used to obtain 40-nm-thick graphite flakes by the micromechanical c
Coefficient of thermal expansion measurements for freestanding nanocrystalline ultra-thin gold films
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 15:105-110
The out-of-plane coefficient of thermal expansion (CTE) measurement method, which is named the thermal bulge method, was used to measure the linear CTE values for freestanding nanocrystalline ultra-thin gold films with thicknesses ranging from 115 to
Publikováno v:
Engineering Fracture Mechanics. 75:4958-4964
The principal goal of this investigation was to develop a feedback controlled high cycle fatigue testing system and to demonstrate its usefulness by acquiring a preliminary stress-life curve of an aluminum film in a very short period of time. A high
Publikováno v:
Fatigue & Fracture of Engineering Materials and Structures. 30:64-71
r Measurements of the mechanical properties of a thin film are strongly influenced by the test procedures. The aim of this paper is to introduce specimen aligning techniques for tensile and fatigue tests with thin films. The calculated modulus for po
Publikováno v:
Key Engineering Materials. :199-202
The accurate characterization of linear coefficient of thermal expansion (CTE) of thin films is vital for predicting the thermal stress, which often results in warpage and failure of a MEMS structure. In this paper, special emphasis is placed on the
Publikováno v:
Key Engineering Materials. :128-136
This investigation aims at doing some durability and damage tolerant (DaDT) tests with 2124-T851 aluminum specimens having corner cracks under a random history, correlating with the simulation results from AFGROW and then drawing some conclusions fro