Results 11 to 20 of about 49,905 (304)
Revista de Odontologia da UNESP, 2019 Introduction Surface treatment prior to bonding ceramic brackets with hydrofluoric acid is indicated because of its ability to promote morphological changes necessary for adhesion.
Cedirlei Gomes da Silveira ANDRADE +4 more
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Direct Potentiometric Determination of Fluoride Species by Using Ion-Selective Fluoride Electrode
International Journal of Electrochemical Science, 2012 A novel approach and method for potentiometric determination of acid dissociation constant (Ka) of hydrofluoric acid are described. Proposed method is based on using commercial fluoride ISE (FISE) as very inexpensive, simple and reasonably fast method ...
Ante Prkić +3 more
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Recrystallized parylene as a mask for silicon chemical etching [PDF]
, 2008 This paper presents the first use of recrystallized parylene as masking material for silicon chemical etch. Recrystallized parylene was obtained by melting parylene C at 350°C for 2 hours.
Kuo, Wen-Cheng +3 more
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Membranes, 2022 This article presents the possibility of using diffusion dialysis for processing spent pickling solution from pickling stainless steels with a mixture of nitric acid and hydrofluoric acid. A counter-current two-compartment dialyzer equipped with an anion-
Helena Bendová, Libor Dušek
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Influence of ceramic (feldspathic) surface treatments on the micro-shear bond strength of composite resin [PDF]
, 2010 Objective: To test the null hypothesis that surface treatment has no influence on the micro-shear bond strength between orthodontic composite resin cement and ceramics (feldspathic porcelain).
Borges, Gilberto Antonio +3 more
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Determination of Rare Earth Elements in Sepiolite by ICP-MS Using Microwave Digestion
Yankuang ceshi, 2018 BACKGROUND Sepiolite is a fibrous hydrous magnesium rich silicate clay mineral with the content of rare earth elements between 1×10-7 and 1×10-5.
ZHANG Nan +5 more
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Hydrometallurgical extraction of Al and Si from kaolinitic clays [PDF]
, 2017 Herein is presented the results of a study on the hydrometallurgic extractionand recovery of aluminum and silicon by leaching of kaolinitic clays with HF. Thestudied extraction parameters were: temperature, reaction time, solid/liquid ratio,concentration,
Pinna, Eliana Guadalupe +3 more
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Sensors, 2018 For monitoring of trace amounts of hydrofluoric acid in the organic fluorine chemical industry, a facile method for determination of the hydrofluoric acid in an ethanol solution of lithium chloride, by coulometric titration, was proposed.
Cairui Huang +3 more
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Dentin contamination during repair procedures: A threat to universal adhesives?
Clinical and Experimental Dental Research, 2022 Objective This study examined the influence of surface contamination during repair procedures with hydrofluoric acid, silane, or ammonium polyfluoride on the bond strength of universal adhesives to dentin using different etching modes before and after ...
Anne‐Katrin Lührs +2 more
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