The list below showing 25 active volcanoes in the Philippines was based on the PHIVOLCS list with some included from the GVP. The number is not definite and depends on someone's definition of active or historical timeframe. Descriptions under Eruption were based on the GVP website.
PVD: Process flow diagram. Physical vapor deposition (PVD) describes a variety of vacuum deposition methods which can be used to produce thin films. PVD uses physical process (such as heating or sputtering) to produce a vapor of material, which is then deposited on the object which requires coating.PVD is used in the manufacture of items which require thin films for mechanical, chemical or electronic reasons.nside the Plasma Spray-Physical Vapor Deposition, or PS-PVD, ceramic powder is introduced into the plasma flame, which vaporizes it and then condenses it on the (cooler) workpiece to form the ceramic coating.
Hydrophobic Coatings. Our liquid glass coatings are also known as hydrophobic coatings, since one of the primary characteristics of the technology is that it makes all substrates it is applied to resistant to water, oil and other liquids.ypically hydrophobic coatings tend force the liquid to bead on a surface as demonstrated in the image below. This is an image of a white shirt coated in our liquid glass textile coating / hydrophobic coating repelling blackcurrant juice.