Results 71 to 80 of about 23,553 (264)

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Effect of Pb-16Li long term exposure on mechanical properties of ceramic materials

Nuclear Materials and Energy
The Dual Coolant Lithium Lead (DCLL) Breeding Blanket (BB) concept is based on the use of liquid metal Pb–16Li. In the current design of the DCLL BB, Pb-16Li circuit is enclosed inside a box made of ceramic material.
Roman Petráš, Richard Kubík, Michal Chocholoušek, Ester Fliegel Duchková, Jaroslav Kekrt, Ladislav Vála   +5 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Probing degradation of Cobalt-free LiNi0.5Mn1.5O4 ceramic cathode in lithium-ion batteries

npj Materials Degradation
High-voltage LiNi0.5Mn1.5O4 (LNMO) cathode is a promising option for transition to sustainable and cost-effective cobalt-free cathodes, and ceramic cathodes can substantially increase energy density by enabling higher active material loading.
Chengyu Li, Jianjun Ma, Cairong Jiang, Xiang Gao, Lei Su, Yongjin Chen   +5 more
doaj   +1 more source

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

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

RADIOGRAPHICAL EVALUATION OF Sr-HASi BIOCERAMIC SUBSTITUTE FOR CRITICAL SIZE BONE DEFECT IN A GOAT – CLINICAL ST [PDF]

Journal of Veterinary and Animal Sciences, 2017
Strontium (50%) incorporated calcium hydroxyapatite coated with silica based ceramic (Sr-HASi) is a biodegradable graft substitute used in the treatment of bone defects and osteoporotic conditions.
Divya Suresh, K. V. Syam, George Chandy, S. Sooryadas, P.M. Deepa   +4 more
doaj  

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Evaluation of cutting edge integrity, surface degradation, and material loss in four implant drilling systems: an in vitro investigation in bovine rib bone

BMC Oral Health
Background Implant drills are essential for precise osteotomy preparation, and their repeated use can affect surface integrity, sharpness, and material loss.
Basak Keskin Yalcin, Betul Gedik, Eda Etik, Abdulkadir Burak Cankaya, Mehmet Ali Erdem, Hulya Kocak Berberoglu   +5 more
doaj   +1 more source

Low-Yellowing Phosphor-in-Glass for High-Power Chip-on-board White LEDs by Optimizing a Low-Melting Sn-P-F-O Glass Matrix

Scientific Reports, 2018
We introduce a low-melting-point (MP) Sn-P-F-O glass ceramic material into the phosphor-in-glass (PIG) material to realize an ‘on-chip’ chip-on-board (COB) type of phosphor-converted (pc) white light-emitting diode (WLED) with green (BaSr)2SiO4:Eu2+ and ...
Hee Chang Yoon, Kouhara Yoshihiro, Heeyeon Yoo, Seung Woo Lee, Ji Hye Oh, Young Rag Do   +5 more
doaj   +1 more source