Results 31 to 40 of about 3,100 (166)

Effect of volume ratio between Cu-Sn-Ti alloy and vitrified binder on microstructures and mechanical properties of diamond segments

Jin'gangshi yu moliao moju gongcheng, 2020
To improve the holding strength of bond to the diamond grits, a Cu-Sn-Ti alloy was introduced as an additive into the SiO2-Al2O3-B2O3-Li2O vitrified bond, which was then made into segments with diamonds.
ZHAO Pengcheng, YAN Xinlin, XIAO Bing, MENG Xianglong, LIU Bingheng   +4 more
doaj  

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Effect of nanometer Ti(C,N)on property of vitrified bond for CBN abrasives

Jin'gangshi yu moliao moju gongcheng, 2016
Na2O-Al2O3-SiO2-B2O3 based vitrified bond was selected as the main research subject.Vitrified bond for nanometer titanium carbonitride could be obtained by adding 2%,4%,6% and 8%mass fraction nano-Ti(C,N)into the basic glass material.The flexural ...
CHEN Feixiao, ZHAO Zhiwei, HU Wenmeng
doaj  

Bond and topography evaluation of a Y-TZP ceramic with a superficial low-fusing porcelain glass layer after different hydrofluoric acid etching protocols

Revista de Odontologia da UNESP, 2018
Introduction Despite being one of the most studied ceramics today, zirconia still does not have a well-defined adhesion protocol. Objective Evaluate the influence of different etching times and hydrofluoric acid (HF) concentrations on the zirconia ...
Arthur Chaves SIMÕES, Jean Soares MIRANDA, Rodrigo Othávio de Assunção e SOUZA, Estevão Tomomitsu KIMPARA, Fabíola Pessôa Pereira LEITE   +4 more
doaj   +1 more source

Understanding the Catalytic Determinant role of Diaphorase‐Like Subunit in Formate Dehydrogenases via Redox Couples

Advanced Science, EarlyView.
A unique mechanism of catalytic bias regulated by diaphorase‐like subunit in formate dehydrogenase from Rhodobacter aestuarii is revealed. The diaphorase‐like subunit functions act as a biological “voltage rheostat” that controls the slow release of NADH to regulate redox balance, biasing the enzyme's catalytic preference toward CO2 reduction over ...
Kuncheng Zhang, Weisong Liu, Hao Su, Huijuan Cui, Yuanming Wang, Zhiguang Zhu, Chun You, Lingling Zhang   +7 more
wiley   +1 more source

Preparing and characterizing ultrafine diamond coated with titanium dioxide

Jin'gangshi yu moliao moju gongcheng, 2018
Using polyvinylpyrrolidone (PVP) as a coupling agent, tetrabutyl orthotitanate (TBOT) as the precursor of titanium dioxide, and ammonia as catalyst, the ultrafine diamond coated with titanium dioxide (UFD@TiO2) with core-shell structure was prepared by ...
ZHAO Yucheng, LI Yapeng, YAN Ning, WANG Mingzhi, ZOU Qin, MIAO Weipeng   +5 more
doaj  

Research on preparation of vitrified bond lapping plates and lapping sapphire performance

Jin'gangshi yu moliao moju gongcheng, 2021
To improve the lapping efficiency and processing quality of the sapphire substrate, two lapping plates composed of vitrified bond diamond lapping pellets with different hardness were developed, and the lapping process experiment was carried out on the ...
LU Jiabin, NIE Xiaowei, YAN Qiusheng, CHEN Haiyang   +3 more
doaj  

Intrinsic Dual‐Phase Regulated GeSe2 Nanoparticles Triggered by Ball‐Milling Treatment for Photonic Multi‐Valued Logic Circuits

Advanced Science, EarlyView.
We report the solid‐state ball milling, a traditional, reliable, mass‐productive material processing, to prepare the air‐stable and dual‐phase GeSe2‐x nanoparticles with extended photodetection feasibility toward optical‐wavelength regions. We further display photonic multi‐valued logic (MVL) circuit through the employment of a hybrid PMMA/GeSe2‐x ...
An‐Ting Tsai, Chun‐Jen Wang, Pin‐Chao Liao, Chin Shan Lue, Chia‐Nung Kuo, Le Vo Phuong Thuan, Po‐Hsuan Hsiao, Chang‐Hyun Kim, Chia‐Yun Chen   +8 more
wiley   +1 more source

Effect of ZrSiO₄on properties and structures of low temperature vitrified bond

Jin'gangshi yu moliao moju gongcheng, 2019
Different contents of ZrSiO4 additives were added to Al2O3-B2O3-SiO2 low temperature vitrified bond. The effect of ZrSiO4 content on the structures and properties of low temperature ceramic bond was studied by differential scanning calorimeter, X-ray ...
TIAN Jiugen, HOU Yonggai
doaj  

Estudo comparativo entre a agressividade superficial obtida na retificação com rebolos de óxido de alumínio e CBN, fabricados com ligantes resinóide e vitrificado The evaluation of the bond resin and vitrified and abrasive grain CBN and alumina influence in the grinding wheel topography characteristics, by the study of the grinding wheel sharpness

Cerâmica, 2011
Este artigo apresenta um estudo da agressividade do rebolo (habilidade de corte). A retificação é um processo de usinagem preciso, o qual é amplamente usado na manufatura de componentes que requerem tolerâncias estreitas e superfícies bem acabadas.
E. C. Bianchi, R. D. Monici, L. D. Neto, A. R. de Aguiar, L. G. Guermandi   +4 more
doaj   +1 more source