نتایج جستجو برای: zirconium oxide

تعداد نتایج: 180730  

2017
Wouter Marchal Inge Verboven Jurgen Kesters Boaz Moeremans Christopher De Dobbelaere Gilles Bonneux Ken Elen Bert Conings Wouter Maes Hans Gerd Boyen Wim Deferme Marlies Van Bael An Hardy

The identification, fine-tuning, and process optimization of appropriate hole transporting layers (HTLs) for organic solar cells is indispensable for the production of efficient and sustainable functional devices. In this study, the optimization of a solution-processed molybdenum oxide (MoOx) layer fabricated from a combustion precursor is carried out via the introduction of zirconium and tin a...

2015
Roberta Bosso-Martelo Juliane Maria Guerreiro-Tanomaru Raqueli Viapiana Fábio Luis Camargo Vilella Berbert Maria Inês Basso Bernardi Mario Tanomaru-Filho

Objective. The aim of this study was to evaluate the physicochemical properties and bioactivity of two formulations of calcium silicate-based cements containing additives (CSCM) or resin (CSCR), associated with radiopacifying agents zirconium oxide (ZrO2) and niobium oxide (Nb2O5) as micro- and nanoparticles; calcium tungstate (CaWO4); and bismuth oxide (Bi2O3). MTA Angelus was used as control....

2014
Rubén Agustín-Panadero Juan L. Román-Rodríguez Alberto Ferreiroa María F. Solá-Ruíz Antonio Fons-Font

STATEMENT OF PROBLEM Evidence is limited on the efficacy of zirconia-based fixed dental prostheses. OBJECTIVE To carry out a literature review of the behavior of zirconium oxide dental restorations. MATERIAL AND METHODS This literature review searched the Pubmed, Scopus, Medline and Cochrane Library databases using key search words "zirconium oxide," "zirconia," "non-metal restorations," "c...

Journal: :Odovtos - International Journal of Dental Sciences 2019

2016
Toshiaki Baba Yasuhisa Tsujimoto

The purpose of this study was to improve the operability of calcium silicate cements (CSCs) such as mineral trioxide aggregate (MTA) cement. The flow, working time, and setting time of CSCs with different compositions containing low-viscosity methyl cellulose (MC) or hydroxypropyl cellulose (HPC) additive were examined according to ISO 6876-2012; calcium ion release analysis was also conducted....

Journal: :Biomaterials 2006
Xuanyong Liu Anping Huang Chuanxian Ding Paul K Chu

Zirconium oxide thin films were fabricated on silicon wafers using a filtered cathodic arc system in concert with oxygen plasma. The structure and phase composition of the zirconium oxide thin films were characterized by atomic force microscopy (AFM), X-ray diffraction (XRD), Rutherford backscattering spectrometry (RBS), and transmission electron microscopy (TEM). The bioactivity was assessed b...

2011
Tae-Hoon Lee Jin-Soo Ahn June-Sung Shim Chong-Hyun Han Sun-Jai Kim

PURPOSE The aim of this study was to evaluate the influence of resin cement thickness on the microtensile bond strength between zirconium-oxide ceramic and resin cement. MATERIALS AND METHODS Thirty-two freshly extracted molars were transversely sectioned at the deep dentin level and bonded to air-abraded zirconium oxide ceramic disks. The specimens were divided into 8 groups based on the exp...

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