Calcium Fluoride Crystals
نویسندگان
چکیده
منابع مشابه
Effect of fluoride on the morphology of calcium phosphate crystals grown on acid-etched human enamel.
The aim of this study was to examine the effect of fluoride ion concentration on the morphology of calcium phosphate crystals grown on acid-etched enamel as a model for tooth enamel erosion. Samples were immersed in calcification solution for 16 h and changes in crystal morphology were monitored by field emission scanning electron microscopy. Without fluoride, plate-like octacalcium phosphate c...
متن کاملAtomic Structure of Float Polished Surfaces of Calcium Fluoride Single Crystals for Ultra Violet Applications
Calcium fluoride (111) single crystals for ultra violet applications have been finished to flat by the float polishing process with 7nm-diameter silicon dioxide powder, pure water and a tin lap. The flatness of 32nm P-V on 90-mm-diameter samples that had a surface roughness of 0.72 nm Ry, and 0.077 nm rms were obtained. High-resolution transmission electron microscopy study of the cross-section...
متن کاملSynthesis of Calcium Fluoride Ultrafine Particles for the Preparation of Integral Asymmetric Cellulose Acetate/Calcium Fluoride Membranes
The present work reports on the synthesis of cellulose acetate (CA) asymmetric membranes with the incorporation of inorganic fluorides, CaF2 particles. These fillers of polymeric composites can, according to the literature, promote the ordering of the polymer matrix, which can lead to interesting permeation properties. In order to achieve that, fluorite (CaF2 ) fine particles were prepared by a...
متن کاملOn optical bleaching of barium fluoride crystals
Barium fluoride (Baf2) crystals were considered by the GEM Collaboration, to be used in constructing a precision electromagnetic calorimeter at the SSC [1] . The key issue of using this crystal at the SSC is its radiation resistance [2] . An Expert Panel was assigned by the SSC laboratory to review the radiation damage problem of BaFz. The Panel met in December 1991 and again in January 1992 fo...
متن کاملCalcium Fluoride Precipitation and Deposition From 12 mmol/L Fluoride Solutions With Different Calcium Addition Rates
The effects of different Ca-addition rates on calcium fluoride (CaF2) precipitation and deposition were investigated in 12 mmol/L sodium fluoride solutions to which 0.1 mol/L calcium chloride solution was continuously added at average rates of (5, 7.5, 10, 12.5, 15 or 20) mmol L(-1) min(-1). The changes in ionic fluoride and calcium concentrations, as well as turbidity, were continuously record...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optik & Photonik
سال: 2008
ISSN: 1863-1460
DOI: 10.1002/opph.201190192