Results 51 to 60 of about 56,885 (233)
Fenmo yejin jishuInhomogeneous structure WC−6Co cemented carbides with the different Y2O3 additions (mass fraction) were prepared by low pressure sintering. The microstructure and properties of the cemented carbides were investigated by scanning electron microscope (SEM),
TANG Yanyuan +4 more
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Australian Endodontic Journal, EarlyView.ABSTRACT The aim was to examine whether a Ca(OH)2 paste affects fracture strength of teeth. Sixty extracted maxillary central incisors were prepared to simulate immature teeth. Another 40 were used as mature teeth. The ten groups (n = 10) were: (1) immature control; (2) immature + access; (3) immature + access + 1 m Ca(OH)2; (4) immature + access + 12 ...
Naseem M. Hashim, Paul V. Abbott
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Sintering WC-8Co Cemented Carbides at Lower Temperature and Pressure
工程科学与技术, 2013 :The WC-8Co cemented carbides were sintered at low temperature and pressure.The influences of sintering temperature and pressure on the microstructure and properties of the cemented carbides were investigated.Results showed that with the increase of ...
孙青竹 +5 more
doaj
Dental Traumatology, EarlyView.ABSTRACT Background/Aim To evaluate the shear bond strength (SBS) of newly developed composite resin materials intended for dental splinting to enamel and to determine whether phosphoric acid etching alone provides reliable adhesion. Material and Methods Four experimental materials (G‐Fix, Light Fix, Ortho Connect, and Ortho Connect Flow) were compared
Wonkyu Shin +7 more
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European Journal of Oral Sciences, EarlyView.Abstract The aim of this study was to evaluate the hardness and elastic properties of various computer‐aided design (CAD)/computer‐aided manufacturing lithium disilicate ceramics, including IPS e.max CAD, GC Initial LiSi Block and CEREC Tessera and to assess the impact of repeated firings on these characteristics.
Maria Kiatipi +4 more
wiley +1 more source
Consolidation of WC-Co nanocomposites synthesised by mechanical alloying [PDF]
, 2009 A thesis submitted in partial fulfilment of the requirements of the University of Wolverhampton for the degree of Doctor of PhilosophyThe influence of mechanical alloying (MA) milling time, temperature, sintering method and microstructure on the ...
Stephen A. Hewitt Beng +1 more
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SC‐550: A Sintered Calcite Reference Material for In Situ U‐Pb Geochronology
Geostandards and Geoanalytical Research, EarlyView.Key Points New calcite reference material (SC‐550) produced by high‐temperature and high‐pressure sintering of nano‐particulate powder from a microbial limestone. Homogeneous U content (2.3 ± 0.4 μg g‐1) and U‐Pb isotope ratios (< 0.6% RSD for 207Pb/206Pb; < 3% RSD for 238U/206Pb).
Lorenzo Tavazzani +7 more
wiley +1 more source
, 2009 This bachelor thesis deals with uncoated cemented carbides, which are used for the manufacture of cutting tools. There is an overview of the most frequently used tool materials in the first chapter.
Pavlovský, Tomáš
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International Endodontic Journal, EarlyView.ABSTRACT Aim Formation of a mineralized dentine bridge is the hallmark of successful direct pulp capping (DPC). Mineral trioxide aggregate (MTA) and Biodentine are widely used capping materials, but in vivo evidence comparing their regenerative potential remains inconclusive. This study used a controlled murine model to compare dentine bridge formation
Amnah Sajdeya +4 more
wiley +1 more source
Desenvolvimento de metais duros sem cobalto [PDF]
, 1990 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnologico. Programa de Pós-Graduação em Engenharia Mecânica. Florianópolis, 1990Neste trabalho, novas ligas são desenvolvidas baseando-se no conhecimento das interações que ocorrem entre
Santos, Julio Navarro
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