Results 101 to 110 of about 173,298,982 (259)

Investigation into the strength, toughness and porosity of barium titanate PTC ceramics [PDF]

, 1990
The effect of processing variables on the Strength and Toughness of n-doped Barium Titanate PTC Ceramics has been investigated. Fracture Toughness, K(_IC), has been measured using an indentation technique and a more conventional notched beam specimen ...
Blamey, Jonathan M.
core  

ZrB2 -MoSi₂ Ceramics: A Comprehensive overview of Microstructure and Properties Relationships. Part I: Processing and Microstructure

, 2019
This study systematically correlates processing with quantitative microstructural information over an extended compositional range for ZrB2 -MoSi2 ceramics, with MoSi2 contents ranging from 5 to 70 vol% and diboride starting particle sizes ranging from 3
Silvestroni, Laura, Monteverde, Frederic, Fahrenholtz, William, D\u27Angio, Andrea, Grohsmeyer, Ryan J., Hilmas, Greg, Sciti, Diletta, Monteverde F, Fahrenholtz W. G, Grohsmeyer R. J, Silvestroni L, Hilmas G. E, Sciti D., D'Angio A   +13 more
core   +1 more source

Morphology, Transport, and Dynamics of Protein Adsorption in Open‐Cell Metal Foam

Advanced Engineering Materials, EarlyView.
Stainless steel (SS) open‐cell foams are shown to adsorb more protein per unit area than previously reported 316L SS and chromium oxide surfaces under static and flow conditions. An integrated approach combining 3D pore imaging, flow simulation, and protein adsorption experiments characterizes the foam’s performance.
Chinmaya Prerana Inguva, Joseph Lavoie, Afsaneh Rabiei   +2 more
wiley   +1 more source

YAG-based transparent ceramics: comparison between HIP and SPS postsintering treatments

, 2022
: YAG-based transparent ceramics are conventionally prepared by vacuum sintering or by a double sintering process, viz. vacuum sintering followed by Hot Isostatic Pressing (HIP).
Andreana Piancastelli, Alexandre Maitre, Remy Boulesteix, Valentina Biasini, Laura Esposito, Jan Hostasa, Francesco Picelli   +6 more
core  

Piezoresponse force microscopy behaviour of Bi4Ti3O12 ceramics with various excess bismuth [PDF]

, 2011
Bismuth titanate (Bi4Ti3O12 - BIT) ceramics derived from different amounts of excess Bi2O3 were prepared using the polymeric precursor method. In spite of excess bismuth, single phase ceramics were obtained with a controlled microstructure.
Francisco Moura, Cilense, Mário, Alexandre Z. Simões, Cilense, Mário [UNESP], Longo, Elson [UNESP], Ederson C. Aguiar, Simões, Alexandre Zirpoli, Longo, Elson, Aguiar, Ederson Carlos, Jose A. Varela, Mario Cilense, Elson Longo, Varela, José Arana [UNESP], Aguiar, Ederson Carlos [UNESP], Simões, Alexandre Zirpoli [UNESP], Moura, Francisco, Varela, José Arana   +16 more
core   +2 more sources

Feasibility and Limitations of the Advanced Replica Process for Bioactive Glasses

Advanced Engineering Materials, EarlyView.
Periodic 3D‐printed Kelvin‐cell templates enable a controlled advanced replica process for fabricating highly porous glass lattices. Across P45K9, 45S5, and 13–93, material‐dependent differences in coating, burnout, and shrinkage lead to distinct strut morphologies, while comparable final porosities of 83%–88% are retained.
Swantje Funk, Elisabeth Keck, Alberto López‐Grande, Delia S. Brauer, Tobias Fey   +4 more
wiley   +1 more source

Microstructure Design of Dielectric Ceramics.

KAGAKU KOGAKU RONBUNSHU, 2000
希望のエネルギー変換特性を持つセラミックスの微構造設計を可能とするために，圧電セラミックスの微構造に基づく電気的，機械的特性値（結合係数，圧電定数，誘電率，弾性コンプライアンス）の推算モデルを提案した．本推算モデルは先に報告したチタン酸バリウムセラミックスに対する誘電率推算モデルを電気的，機械的特性値の推算に拡張したものであり，実際のセラミックスが有する結晶粒径，粒界厚みの大きさ，気孔径およびそれらの分布が圧電特性におよぼす影響を定量的に検討できる．本モデルによる推算結果は操作条件によって鋭敏に変化するエネルギー変換特性を良く表現し，提案モデルが十分な信頼性を与えることを確認した．この推算モデルを用いた各特性値の微構造パラメーター依存性への詳細な検討結果は，希望の特性値を与える微構造設計を可能とする．
SHIMOSAKA, ATSUKO, NOZAKI, MICHINORI, SHIRAKAWA, YOSHIYUKI, HIDAKA, JUSUKE   +3 more
openaire   +2 more sources

Characterisation of some kaolins in relationship with electric insulator ceramics microstructure [PDF]

, 2005
Various types of kaolins as representative raw materials for electric insulator ceramics were investigated in order to establish their influence on ceramics' properties, defects and microstructure.
Gorea Maria, Kristály Ferenc, Pop Dana
core  

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Processing, Microstructure, and Thermomechanical Behavior of Ceramics

, 2001
International audienceA global approach to ceramics, including the effect of processing on microstructure and of microstructure on final properties, is needed in order to extend the use of ceramic materials.
Fantozzi, Gilbert, Chevalier, Jérome, Guilhot, Bernard   +2 more
core   +1 more source