Laser Means of Synthesizing and Modifying Refractory Powders
Abstract
The objective of this program is to explore laser means of producing ceramic powders which exhibit superior densification characteristics in sintering and hot pressing processes. Three distinct processes are being investigated. These are: synthesizing powders from gas phase reactants heated by directly coupling the light to the reactants, producing homogeneous or composite particles by pyrolysing gas phase reactants onto laser heated powders, and modifying particle size and shape by dissociating the powder particles with the high intensity light. Analyses and limited experiments indicate that these processes have attributes which should permit small diameter, high purity spherical powders to be produced with controlled dopant levels and narrow particle size distributions. It is because these attributes are important for achieving high strength ceramic bodies that the processes are being investigated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1977
- Accession Number
- ADA068628
Entities
People
- John S. Haggerty
- W. Roger Cannon
Organizations
- Massachusetts Institute of Technology