"In order to produce a porous ceramic material, raw materials such as silica powders and pore-forming materials like starch or other organic polymers are needed. Then they are mixed and put into a mold with high pressure. Samples are obtained with a fixed shape. The samples are put into a furnace and set to a high temperature. Pores are formed while the pore-forming agent combusts and escapes. This kind of pore plays an important role by introducing e-liquid into your vape.
However, to make enough pores, the temperature to stick the materials together is lower which causes low tensile and compressive strength. The powders fall off or crack when the ceramic coil is touched or shaken. All the powders can be introduced into the lung by air which is dangerous (the speed of air can reach 223mph when we are vaping).
High pressure from the vapor will expand and damage the structure of the porous ceramic material. Loose powders will fall off and go into the lung. Causing death.
Silicosis is a form of occupational lung disease caused by inhalation of crystalline silica dust. Symptoms are inflammation and scarring in the form of nodular lesions in the upper lobes of the lungs. This is a type of pneumoconiosis. Silicosis can be complicated by the development of severe scarring, where small nodules gradually merge together, reaching a size of 1cm or greater. Progressive massive fibrosis is associated with more severe symptoms and respiratory impairment. Silicosis can also be complicated by other lung diseases such tuberculosis, non-tuberculous mycobacterial infection, and fungal infection, certain autoimmune diseases, and lung cancer (“Silicosis.” Wikipedia. Wikimedia Foundation, n.d. Web. 29 Sept. 2016.)(
https://en.wikipedia.org/wiki/Silicosis)."