Influence of Chlorine on Sintering of Yttria-Doped Zirconia.

Effect of impurities on sintering and conductivity of yttria-stabilized zirconia

The effect of low concentrations of Fe203, AI203 and Bi203 on the sintering behaviour of (ZrO2)o.83 (YO1.s)o.17, made by alkoxide synthesis, has been investigated. The best results are achieved with Bi203 as a sinter agent and a relative density of 95% is obtained at 1200 K. The effects of these impurities on the electrical conductivity of the bulk and the grain boundaries has been investigated...

Sintering and Fracture Behavior of Composites Based on Alumina-zirconia (yttria)-nonoxides

Strength and toughness of A l 2 O 3 based ceramics were improved by d i spers ing ZrO,(Y,O,) and nonoxide mate r ia l s such a s Sic , Tic, TiN and B&. S ign i f ican t toughening and hardening were a t t a i n e d i n A1203-Zr0,-Sic and Al,O,-Zr0,-Tic composites.

Effect of Water/Alkoxide Molar Ratio on the Synthesis Process and Electrochemical Behavior of Yttria-doped Zirconia Sol-gel Films

The aim of this work is to synthesize and investigate the performance of yttria-doped zirconia solgel coatings in the chemical corrosion prevention of zircaloy-4 (zirconium alloy) in a 1 N H2SO4 environment. The influence of four different molar ratios of water to alkoxide, namely 1, 4, 12, and 20, on the coating quality and its corrosion prevention performance was investigated. Differential th...

the influence of the neo-platonic concept of poetic imagination on wordsworth’s poetry

بر اساس نظریه افلاطون در باره شعر خلاقیت هنری مورد انتقاد قرار گرفته است. نظریه کلی در مورد شعر این بود که شعر از ظواهرتقلید میکند و نه حقیقت. چون سایه ای از حقیقت است. اما با پیدایش فلسفه نو افلاطونی، انتقاتات قبلی در مورد شعر و شاعری اصلاح شد. فلوطین در کتاب انئید، اساس خلق هنری را بر محور مُثل افلاطونی قرار داد. وی باور داشت که هنر مندان در خلق آثار هنری، تحت تاثیر مُثل افلاطونی بوده و عوالمی ...

Sintering of zirconia pdf