1 / 1

Sol-gel processing basics

Sol-gel processing basics. Alcohol . metal. solution. Hydrolysis. Policondenstion. Xerogel film. Dense film. Heating. coating. Glass,. Wet gel. dense . Xerogell. ceramics. Heating. coating. Evaporation. Aerogel. Gelation. Solvent removing. Unisized . Gelled spheres.

silas
Download Presentation

Sol-gel processing basics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Sol-gel processing basics Alcohol metal solution Hydrolysis Policondenstion Xerogel film Dense film Heating coating Glass, Wet gel dense Xerogell ceramics Heating coating Evaporation Aerogel Gelation Solvent removing Unisized Gelled spheres percipitation spinning Sol Oven Ceramic fibers • 1. HYDROLYSIS • Si(OR)4 + nH2O  (OR)4-n-Si-(OH)n + nROH • 2. CONDENSATION • (RO)3Si-OR + HO-Si(OR)3 (RO)3Si-O-Si(OR)3 + ROH • (RO)3Si-OH + HO-Si(OR)3 (RO)3Si-O-Si(OR)3 + H2O

More Related