With an extensive application of surface treatment chemicals in automotive coating, the thriving global automobile and component production is expected to create sustainable demand for the surface treatment chemical market, especially etchants
and electrolytic colouring chemicals.
It participates in six of seven key semiconductor process steps, supplying high purity specialty process gas, cleaners and etchants
, slurries, organosilanes and organometallics deposition films, and equipment.
In the surface roughing step, several electrical methods such as anion exchange method, anodization combined with low-temperature plasma treatment were adopted to create micro/nano-scale hierarchical structures, (7,8) and chemical etch techniques were carried out in various etchants
such as NaOH solution and dislocation etchant
to prepare biomimetic surfaces.
Good chemical resistance to solvents and etchants
should be used during the sample preparation process.
9) to that of regular etchants
and this could be attributed to its efficient bonding to tooth enamel.
Specimens were resized, grinded and finished, after which etching was done to reveal the microstructure using Nital etchants
containing 4% nitric acid (HN[O.
Following the polishing step, a variety of etchants
can be applied to the surface to reveal specific phases and grain boundaries in the structure.
Since flexible circuits are produced using a photo-etch process, the manufacturer must use a foil that the chemical etchants
Etching is basically rapid, controlled corrosion; corrosion-resistant materials--titanium, tantalum, and gold--are difficult to etch and require extremely corrosive etchants
Further, Praxair Asia's electronics business supplies to the Integrated Circuit, Light Emitting Diode, Liquid Crystal Display and Photovoltaic segments products that include process gases like precursors, dopants, reactants, etchants
, inerts, etc besides bulk, on-site and associated distribution equipment.
Because the titanium dioxide on the surface of the implant is a stable one, choice of etchants
is limited to few acids and alkaline solutions.
Effects of rotary instrumentation and different etchants
on removal of smear layer on human dentin.