Results 101 to 110 of about 123,905 (309)

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

A Novel Thermal Deformation Self-Stabilization Flexible Connection Mechanism

Actuators
In micro-LED chip repair, a nanopositioner is commonly used to adjust the positioning of the LED chip. However, during the bonding process, the heat generated can cause the positioning system to deform, leading to inaccurate alignment and poor-quality ...
Fahui Feng, Zhihang Lin, Hui Tang
doaj   +1 more source

Numerical investigations on thermal deformation of large deployable reflector in space during earth eclipse (1st report, fundamental investigations to suppress thermal deformation and thermal deformation analysis)

Transactions of the JSME (in Japanese), 2015
Space structures encounter various severe environments in space. One of these environments is severe thermal condition where the difference of temperature during day-time and night-time is about 200 degrees Celsius. A signal level of radio wave from the Large Deployable Reflector (LDR) mounted on the Engineering Test Satellite-VIII (ETS-VIII) was ...
Kaori SHOJI, Motofumi USUI, Daigoro ISOBE   +2 more
openaire   +3 more sources

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Thermal deformation generated on a CFRP laminated reflector

Mechanical Engineering Journal, 2016
Carbon Fiber Reinforced Plastic (CFRP) has high specific stiffness and its thermal deformation can be controlled by fiber orientation. Therefore, it is often adopted as a material of space observation systems.
Shun TANAKA, Tadashige IKEDA, Atsuhiko SENBA   +2 more
doaj   +1 more source

Numerical Analysis of Performance, Rotor Temperature Distributions, and Rotor Thermal Deformation of an R134a Screw Compressor

, 2012
A numerical analysis is performed to systematically calculate the performance, rotor temperature distributions, and rotor thermal deformation of an R134a screw compressor. The analysis procedure includes three major steps.
Hsieh, Wenhsin, Huang, Chishun, Hsieh, Shenghung, Huang, Yuhua   +3 more
core  

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Thermal elastic deformations of the planet Mercury [PDF]

Journal of Geophysical Research, 1972
The variation in solar heating due to the resonance rotation of Mercury produces periodic elastic deformations on the surface of the planet. The thermal stress and strain fields under Mercury's surface are calculated after certain simplifications. It is found that deformations penetrate to a greater depth than the variation of solar heating, and that ...
openaire   +1 more source

A Lumped Thermal Parameter Model for Scroll Compressors Including the Solution of the Temperature Distribution along the Scroll Wraps

, 2012
A lumped parameter thermal model has been developed to predict the temperature distribution of scroll compressors with especial attention to gas superheating in the suction process.
Deschamps, Cesar J., Pereira, Evandro L. L., Diniz, Marco C.   +2 more
core  

A study of thermal deformation in the carriage of a permanent magnet direct drive linear motor stage

, 2012
Carriage deformation due to temperature gradients within the materials of the carriage affects the accuracy of precision machines. This is largely due to the indeterminist temperature distribution in the carriage's material caused by the non-linearity of
Lin, W., Zhong, Z. W., Khoo, L. P., Chow, J. H.   +3 more
core   +1 more source