Results 21 to 30 of about 49,905 (304)

Laser Use in Creating Orthodontic Adhesion to Ceramic Surfaces

Applied Sciences, 2021
Orthodontists must sometimes bond attachments to ceramic crowns, by using one of the surface preparations available, such as sandblasting or acid etching with hydrofluoric acid.
Anca Labunet, Andreea Kui, Sorina Sava
doaj   +1 more source

Determination of Nb and Ta in Nb-Ta Ore by Inductively Coupled Plasma-Optical Emission Spectrometry with a Combined Microwave Digestion Hydrofluoric Acid-resistant System

Yankuang ceshi, 2016
Niobium and tantalum in hydrofluoric acid can form a stable solution, and thus the Nb and Ta content of Nb-Ta ore can be determined accurately by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) with a hydrofluoric acid resistant system.
MA Sheng-feng, WEN Hong-li, LI Bing, WANG Lei, ZHU Yun   +4 more
doaj   +1 more source

Use of composites to control bottomhole zones at high reservoir temperatures [PDF]

E3S Web of Conferences
It is found that one of the ways to increase the depth of penetration, as well as to prevent the formation of sediments, is the use of systems that contribute to the generating formation of hydrofluoric acid in reservoirs due to the ability to maintain a
Veliyev Elshad, Viet Le, Mukhametshin Vyacheslav V., Veliyev Mubariz, Zung Kuok   +4 more
doaj   +1 more source

In Vitro Evaluation of the Effect of Different Surface Treatments on Shear Bond Strength of New to Old Composite Restorations

Dental Hypotheses, 2020
Introduction: Composite resins have developed in past years, however, failures may occur which needs whole restoration repairing. this study aimed to evaluate the effect of different surface treatments on shear bond strength of new to old composite ...
Ebrahim Yarmohammadi, Maryam Farshchian
doaj   +1 more source

A novel approach to determining appropriate additive concentrations for stimulation of gas carbonate reservoirs

Results in Engineering, 2023
This comprehensive study delves into the intricate realm of matrix acidizing treatments within low-permeability gas reservoirs. The research scrutinizes the profound impact of various commercially available additives on acidizing processes, with a keen ...
Javad Mahdavi Kalatehno, Ehsan Khamehchi, Amirhossein Abbasi, Mohammad Reza Khaleghi   +3 more
doaj   +1 more source

Effects of different surface treatments on bond strength of an indirect composite to bovine dentin

Indian Journal of Dental Research, 2015
Background: Several surface treatments could be used to improve the bond strength (BS) between indirect composites and cement. Aim: To evaluate the BS of an indirect composite submitted to different surface treatments, cemented to bovine dentin. Settings
Laiza Tatiana Poskus, Rosana Sampaio Meirelles, Victor Blunck Schuina, Liana Matos Ferreira, Eduardo Moreira da Silva, Jose Guilherme Antunes Guimarães   +5 more
doaj   +1 more source

Hydrofluoric Acid-Free Synthesis of MIL-101(Cr)-SO₃H

Crystals
The conventional synthesis of the Metal–Organic Framework (MOF) MIL-101(Cr)-SO3H employs hydrofluoric acid as the modulator, posing handling challenges due to its irritating, corrosive, and toxic nature, as well as its reactivity with glass and metals ...
Tamara M. Bernal, Fernando Rubiera, Marta G. Plaza   +2 more
doaj   +1 more source

Evaluation of Shear Bond Strength of Various Chairside Reline Materials to 3D Printed Provisional Crown Resins Following Surface Treatment

Journal of Pharmacy and Bioallied Sciences
Background: The reline material and interim base should bond well in provisional restorations. Few research examined 3D-printed restoration-relining bonding.
Shahd Alshahrani, Manal R. Alammari
doaj   +1 more source

An Evaluation of Different Materials for Surface Treatment on Microleakage of Repaired Composite Resin Restoration [PDF]

Al-Rafidain Dental Journal, 2009
Aims: To evaluate the effect of different surface treatment on the microleakage of repaired CI V com-posite resin restoration. Materials and methods: This study was performed in vitro on 20 caries free premolar teeth.
Jabbar H Kammel, Emad F Alkhalidi
doaj   +1 more source

Etching of aluminum for bonding Patent [PDF]

, 1968
Etching aluminum alloys with aqueous solution containing sulfuric acid, hydrofluoric acid, and an alkali metal dischromate for adhesive ...
Emde, W. D., Pollack, I.
core   +1 more source