Mechanical characterization of Ormosil films on plastics: Young's modulus determination by three points bending

1994 ◽  
Vol 2 (1-3) ◽  
pp. 171-173 ◽  
Author(s):  
P. Etienne ◽  
R. Semp�r� ◽  
J. Phalippou
Keyword(s):  
Young’S Modulus ◽  
Mechanical Characterization ◽  
Young's Modulus

A Nanoindentation-Based Microbridge Testing Method for Mechanical Characterization of Thin Films for MEMS Applications

2005 ◽  
Author(s):  
Zhiqiang Cao ◽  
Tong-Yi Zhang ◽  
Xin Zhang
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Young’S Modulus ◽  
Microelectromechanical Systems ◽  
Mechanical Characterization ◽  
Young's Modulus ◽  
Chemical Vapor ◽  
Testing Method ◽  
Chemical Vapor Deposited

Plasma-enhanced chemical vapor deposited (PECVD) silane-based oxides (SiOx) have been widely used in both microelectronics and MEMS (MicroElectroMechanical Systems) to form electrical and/or mechanical components. In this paper, a novel nanoindentation-based microbridge testing method is developed to measure both the residual stresses and Young’s modulus of PECVD SiOx films on silicon wafers. Theoretically, we considered both the substrate deformation and residual stress in the thin film and derived a closed formula of deflection versus load. The formula fitted the experimental curves almost perfectly, from which the residual stresses and Young’s modulus of the film were determined. Experimentally, freestanding microbridges made of PECVD SiOx films were fabricated using the silicon undercut bulk micromachining technique. The results showed that the as-deposited PECVD SiOx films had a residual stress of −155±17 MPa and a Young’s modulus of 74.8±3.3 GPa.

Mechanical Characterization of Heterogeneous Polycrystalline Rocks Using Nanoindentation Method in Combination with Generalized Means Method

2020 ◽  
Vol 36 (6) ◽  
pp. 813-823
Author(s):  
M.R. Ayatollahi ◽  
M. Zare Najafabadi ◽  
S. S. R. Koloor ◽  
Michal Petrů
Keyword(s):  
Mechanical Properties ◽  
Young’S Modulus ◽  
Mechanical Characterization ◽  
Young's Modulus ◽  
Numerical Approach ◽  
Empirical Constant ◽  
Nanoindentation Experiment ◽  
Granite Rocks ◽  
Granite Samples

ABSTRACTThe mechanical characterization of rocks is important in engineering design and analysis of rock-related structures. In the current researches, rocks are classified as heterogeneous materials with anisotropic behavior, and advanced methods such as combined experimental-numerical approach are developed to characterize the behavior of rocks. In this study, the nanoindentation experiment in conjunction with the generalized means method is used to determine the Young’s modulus and hardness of eight different polycrystalline granite rocks. In the first step, the Young’s modulus and hardness of granites’ constituents are determined through nanoindentation tests on pure granite minerals. Then, the properties of granites are determined using generalized means method by considering the mechanical properties of minerals, their volume fractions and an empirical constant called the microstructural coefficient. Accurate results with less than 3% error are obtained for 62.5% of the granite samples. The generalized means is introduced as a simple and effective method to characterize the mechanical properties of heterogeneous polycrystalline rocks.

A UNIQUE APPROACH TO EXPERIMENTAL CHARACTERIZATION OF A THERMOSETTING POLYMER MATRIX FOR ICME FRAMEWORKS

2021 ◽  
Author(s):  
MICHAEL N. OLAYA ◽  
SAGAR PATIL ◽  
GREGORY M. ODEGARD ◽  
MARIANNA MAIARÙ
Keyword(s):  
Tensile Strength ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Cure Kinetics ◽  
Image Correlation ◽  
Scanning Calorimetry ◽  
Mixing Ratios ◽  
Fitting Procedure ◽  
Amine Content

A novel approach for characterization of thermosetting epoxy resins as a function of the degree of cure is presented. Density, cure kinetics, tensile strength, and Young’s modulus are experimentally characterized across four mixing ratios of DGEBF/DETDA epoxy. Dynamic differential scanning calorimetry (DSC) is used to characterize parameters for a Prout-Thompkins kinetic model unique to each mixing ratio case through a data fitting procedure. Tensile strength and Young’s modulus are then characterized using stress-strain data extracted from quasi-static, uniaxial tension tests at room temperature. Strains are measured with the 2-D digital image correlation (DIC) optical strain measurement technique. Strength tends to increase as amine content use in the formulation increases. The converse trend is observed for Young’s modulus. Density measurements also reveal an inverse relationship with amine content.

Synthesis and characterization of a Ti‐Zr‐based alloy with ultra‐low Young’s modulus and excellent biocompatibility

2021 ◽  
Author(s):  
Kyong Min Kim ◽  
Yazan Al-Zain ◽  
Akiko Yamamoto ◽  
Amirah H. Daher ◽  
Ahmad T. Mansour ◽  
...  
Keyword(s):  
Young’S Modulus ◽  
Young's Modulus ◽  
Synthesis And Characterization

scholarly journals Simultaneous Characterization of Instantaneous Young’s Modulus and Specific Membrane Capacitance of Single Cells Using a Microfluidic System

Sensors ◽  
2015 ◽  
Vol 15 (2) ◽  
pp. 2763-2773 ◽  
Author(s):  
Yang Zhao ◽  
Deyong Chen ◽  
Yana Luo ◽  
Feng Chen ◽  
Xiaoting Zhao ◽  
...  
Keyword(s):  
Young’S Modulus ◽  
Young's Modulus ◽  
Single Cells ◽  
Microfluidic System ◽  
Membrane Capacitance ◽  
Specific Membrane
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