Results 31 to 40 of about 18,381 (268)

Fatigue Behavior of Sintered Alumina

Journal of the Japan Society of Precision Engineering, 1968
以上の実験結果をまとめると次のようになる.1) 2種類の焼結アルミナ (高温圧縮材と常温圧縮材) ともに同一特性とみられる疲れ挙動を示す.そして両者の疲れ強さの差は静的曲げ強さの差と同じ程度である.2) 常温の静的曲げ疲れも繰返し曲げ疲れも静的強さに近い応力範囲すなわちその80～85%位までのところで起こる現象である.静的曲げ疲れは正確な耐久限を示さず, 繰返し曲げ疲れでは明確な耐久限を示して, 107 cyclesを疲れ耐久限度としてよい.疲れ強さとしては両者でほとんど差がみられない.3) 繰返し曲げ疲れの場合に応力比 (応力振幅/平均応力) が疲れに及ぼす影響はほとんどないとみてよい.すなわち応力変動の大小が疲れに関与するよりも繰返しの上限応力 σbmax ...
SUGITA, Tadaaki, SANO, Yukio, YAMADA, Iwao   +2 more
openaire   +2 more sources

The sintering behavior of ellipsoidal particles

Journal of the American Ceramic Society, 2022
Abstract The sintering behavior of ellipsoidally shaped particles, particularly spheroids, was studied using a numerical kinetic Monte Carlo model for solid‐state sintering. Compact packings of spheroids with five different aspect ratios from 0.5 to 2.0, thus comprising oblate, spherical, and prolate particles, were generated by ...
openaire   +1 more source

On the Fatigue Behavior of Sintered Iron

Journal of the Japan Society of Powder and Powder Metallurgy, 1976
Completely reversed plane bending fatigue tests were carried out using sintered iron compacts made from five different iron powders. The fatigue specimens with sintered densities in the range of 6.2-7.0g/cm3 were prepared by single compacting and sintering at 1200°C for 1 hr in hydrogen.
Honda, Tadatoshi, Tokunaga, Youichi
openaire   +2 more sources

Defect regulation and photodarkening suppression in Yb:Y2O3 laser ceramics through charge-compensated Zr–Ca co-doping strategy

Journal of Advanced Ceramics
Sesquioxide ceramics are promising candidates for high-power laser applications, yet achieving high optical quality remains challenging. This is primarily due to rapid grain-boundary mobility during the final stage of sintering and pump-induced ...
Qing Li, Dongliang Xing, Jun Wang, Fengkai Ma, Jie Ma, Peng Liu, Fei Liang, Jian Zhang, Haohai Yu, Huaijin Zhang, Dingyuan Tang   +10 more
doaj   +1 more source

Evaluation of the Influence of MgO and La2O3 on the Fast Sintering of Mullite [PDF]

Materials Research, 2015
The influence of MgO and La2O3 on the fast sintering of mullite was evaluated in this work. High-purity mullite was doped with MgO and La2O3, conventionally sintered, fast sintered, and microwave-sintered in rapid sintering cycles.
Pollyane Márcia de Souto, Romualdo Rodrigues Menezes, Ruth Herta Goldschmidt Aliaga Kiminami   +2 more
doaj   +1 more source

Light‐Assisted 3D Printing Techniques and Photocrosslinking Strategies: Recent Advances in Musculoskeletal Tissue Engineering

Advanced Engineering Materials, EarlyView.
In this review, the current state of light‐assisted 3D printing as it pertains to engineering musculoskeletal tissues including bone, cartilage, skeletal muscle, tendon, and ligaments is summarized. Common printing techniques, photoreactive materials, and study design choices are compiled and reviewed.
Meagan Morgan, Bin Zhang, Roger Narayan
wiley   +1 more source

Sintering Behavior and Properties of Mo‐Cu Composites [PDF]

Advances in Materials Science and Engineering, 2018
A simple microwave‐assisted aqueous solution strategy combined with a subsequent low‐temperature hydrogen reduction process was used to prepare Mo‐Cu nanopowders. In order to systematically investigate the densification behavior and properties of Mo‐Cu composites, the densification, microstructure, hardness, electrical conductivity, thermal ...
Aokui Sun, Yuejun Liu, Dezhi Wang, Zhihua Zhou   +3 more
openaire   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Swelling negation during sintering of sterling silver: An experimental and theoretical approach

Results in Physics, 2018
One of the main challenges of the sintering of sterling silver is the phenomenon of swelling causing de-densification and a considerable reduction of the sintering kinetics.
Charles Manière, Elia Saccardo, Geuntak Lee, Joanna McKittrick, Alberto Molinari, Eugene A. Olevsky   +5 more
doaj   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source