An evaluation of four firing profiles was performed to determine the optimum processing conditions for producing high-T c Bil.8Pb0.33Srl.87Ca2Cu30 x thick films on yttriastabilized zirconia substrates. Using these four profiles, the effects of sintering temperatures of 830-850°C and soak times of 0.5 to 12 hours were examined. In this study, Tc,zero values of 100K were obtained using a firing p...

The effect of anionic composition zinc salts upon interaction with tin (IV) chloride on preparation orthostannate by the sol-gel method was studied. It determined that minimum temperature for synthesis 800 °C. revealed when used, tetraaminezinc formed, which decomposed during firing. When acetate or sulfate not fully completed up to 1100

objective: it is well known that intracerebroventricular (icv) and supraspinal injections of orexin-a elicit analgesia, but the mechanism(s) of action remains unidentified. this study aims to characterize the effect of orexin-a on rostral ventromedial medulla (rvm) neurons which are involved in the descending nociception modulating pathway. materials and methods: in this experimental study, we ...

background and aim: metal ceramic restorations are widely used in crowns. the marginal fitness of these artificial crowns is prone to alteration during the firing cycle of porcelain. gold electroformed metal-ceramic restorations have been introduced as alternatives to conventional metal-ceramic restorations. however little is known about the relationship between procelain firing procedures and ...