Amorphous Alloys Laboratory
The Amorphous Alloys Laboratory user facility is housed within the Materials Science and Technology Division, Group MST-8. At this facility, researchers can synthesize and characterize alloys in various metastable states.
The facility has a variety of high-energy powder attritors to prepare amorphous and nanocrystalline alloy powder. The powder can be characterized by x-ray diffraction, differential scanning calorimetry, optical microscopy, and scanning and transmission electron microscopy. High-purity alloys can be prepared by induction heating and melt levitation in a "silver boat."
A unique rotating-anode x-ray diffractometer, operating in the theta-theta mode (sample remains horizontal) enables structural studies in powders, solids, and molten alloys. The source of x-rays is an 18-kilowatt rotating-anode generator. A tungsten ribbon is used to heat the sample, in a vacuum, from room temperature to 2,700 degrees Centigrade, with a temperature resolution of plus or minus 1 degree Centigrade. The diffracted x-ray beam is detected by a Peltier-cooled solid-state detector. The data acquisition and data analysis is fully automated.
The capacity of metallic alloy to store hydrogen from the gas phase can be measured using a fully automated Sieverts apparatus. This apparatus, developed at Los Alamos, is unique in its cleanliness and pressure measurement accuracy and resolution.
Equipment in addition to what is listed above:
Last Update: 31 July 2003