Results 31 to 40 of about 56,885 (233)

Research progress on preparation of cobalt-less/cobalt-free WC-based materials

Fenmo yejin jishu, 2021
In view of the scarcity of cobalt resources in China and the deficiency of the traditional WC–Co cemented carbides serving in the corrosive medium and high temperature environments, a series of cobalt-less/cobalt-free WC-based materials with good ...
TANG Yu
doaj   +1 more source

Effects of Sintering Pressure and Co Content on the Microstructure and Mechanical Performance of WC–Co Cemented Carbides

Metals
The fabrication of WC-based cemented carbides faced challenges including inhomogeneous composition and grain coarsening. To solve these problems, WC–Co cemented carbides were fabricated via spark plasma sintering (SPS) using core–shell WC–Co powders ...
Jinhu Ju, Dan Huang, Haitao Xu, Duo Dong, Jiangpeng Lou, Yuan Xu, Jiao Shi, Liu Zhu   +7 more
doaj   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

Advanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang, Xing Yang, Liping Liu, Yang Peng, Yangyang Wang, Hualiang Lv   +5 more
wiley   +1 more source

Avaliação da influência de adições de molibdênio, ferro e cromo no comportamento de sinterização e nas propriedades mecânicas do metal duro à base de níquel [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014.Ligantes alternativos têm sido extensivamente estudados para substituir, total ou parcialmente, o ...
Cabral, André Bittencourt
core  

Effects of Cr concentration on the microstructure and properties of WC-Ni cemented carbides

Journal of Materials Research and Technology, 2020
Based on thermodynamic calculations, WC-Ni-Cr3C2 model alloys with high Ni content have been designed by fixing the carbon potential to form either graphite or eta (M6C) phases.
Guoping Li, Yingbiao Peng, Lianwu Yan, Tao Xu, Jianzhan Long, Fenghua Luo   +5 more
doaj   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Experimental analysis on vibratory finishing of cemented carbides

, 2021
S.21-24In the cutting tool industry and for wear parts, vibratory finishing is often used for deburring and cleaning. Cemented carbides are commonly used as cutting and tool materials in these industries.
Barth, Sebastian, Ohlert, Marius, Bergs, Thomas, Müller, Ulrich   +3 more
core   +1 more source

Research progress in sintering methods and grain inhibition of ultrafine/nano WC-Co cemented carbide

Cailiao gongcheng
WC-Co cemented carbides are widely used in various industrial fields because of their high hardness， strength， wear resistance， and other properties. Compared with conventional cemented carbides， the comprehensive properties of ultrafine/nano cemented ...
LIU Jiaying, ZHAO Zhiwei, GAO Zimei, JIANG Hao   +3 more
doaj   +1 more source

The Effect of Cr3C2 and TaC Additives on Microstructure, Hardness and Fracture Toughness of WC-6Co Tool Material Fabricated by Spark Plasma Sintering [PDF]

Materials Research, 2017
Spark plasma sintering has been used to successfully produce WC-6Co-xCr3C2, WC-6Co-xTaC (x = 0.2, 0.6, 1.0) and WC-6Co-xCr3C2-xTaC (x = 0.1, 0.3, 0.5) cemented carbides. The spark plasma sintered compacts were investigated by scanning electron microscopy,
Piotr Siwak, Dariusz Garbiec, Michal Rogalewicz   +2 more
doaj   +1 more source