'Cubic crystal structure' presentation slideshows

Minerals

Minerals. What is a mineral?. A mineral is a naturally occurring, inorganic solid with an orderly crystalline structure and a definite chemical composition. 5 Characteristics of Minerals. 1. Naturally occurring - forms by natural geologic processes, synthetic gems are not considered minerals

1.21k views • 78 slides

With tiny precipitate particles

Freedom is an elusive concept. Some men hold themselves prisoner even when they have the power to do as they please and go where they choose, while others are free in their hearts, even as shackles restrain them -Zensunni wisdom. Dislocation interactions. With tiny precipitate particles.

270 views • 15 slides

Fuel Cell Catalysts Based on Metal Nanoparticles

Fuel Cell Catalysts Based on Metal Nanoparticles. 4.5.2011 Taina Rauhala. Contents. Introduction to fuel cells Why use nanoparticle catalysts? Preparation of supported NP catalysts Size effect The effect of different crystallographic planes on the catalytic activity Alloying Conclusions

489 views • 15 slides

Pyrite

469 views • 13 slides

Metals

Metals. Metallic Bonds. Metals are made up of very closely packed cations which are surrounded by a seas of valence electrons The attraction between the electrons and the cations is what helps them keep their shape. Properties.

260 views • 8 slides