Knowledge in projections of solids

Projections of Solids

These are the notes of the subject Engineering Drawing for engineering and are targeted to one of the difficult subtopics of Projection of Solids. These will prove beneficial to both FY and SY Engineering students of all branches and help them to score good marks in their exams.

DRYING OF WET SOLIDS

THERE IS A DETAILS DESCRIPTION OF THIS CHAPTER OF MASS TRANSFER. IT DESCRIBES HOW TO DRY SOLID WITH VARIOUS TYPE OF DRYER, EQUILIBRIUM MOISTURE CONTENT, CRITICAL MOISTURE CONTENT,CALCULATION OF DRYING TIME FROM DRYING RATE DATA ETC

defect in crystals

It is a truism that the more we learn about anything the more complex that subject becomes. This is especially true of our understanding of the exact arrangement of atoms or ions which make up solid materials.The rapid development and improvement of the techniques by which defects solids are detected and characterized, and which form the subject matter of this book, have necessitated constant revision of our concepts of perfect and defective solids. It is, for example, no longer adequate to confine our attention to isolated point defects without also considering their aggregation to form more complex defect centres and eventually even separate phases, their relationship with non-stoichiometry and their interactions with each other and with the linear and planar defects with which they co-exist. Similarly, the precise structural information now available for many materials reveals that non-stoichiometric phases may exist as modulated structures in which the composition may vary in a continuous fashion to yield commensurate, semi-commensurate and incommensur-ate structures. The presence of shear planes also changes the composit-ion of non-stoichiometric phases.