Relationship between microindentation response and film composition and microstructure for some novel amorphous alloy coatings
A number of amorphous alloy coatings have been deposited onto Ni substrates by decomposing metal carbonyls (Ni(CO)/sub 4/ and Fe(CO)/sub 5/) and metalloid hydrides (PH/sub 3/ and B/sub 2/H/sub 6/) by using a combination of heat (chemical vapor deposition) and high-energy electron and ion bombardment (radio frequency plasma deposition). The chemical composition of these films has been determined using Auger electron spectroscopy and the hybridization (i.e., bonding character) of the metalloids (phosphorus, boron and carbon) has been evaluated by using Auger lineshape analysis. The amorphous/crystalline nature of these alloys has been evaluated by using x-ray and electron diffraction techniques. The microindentation load-depth response of these films has been measured with an ultra-low-load hardness tester capable of testing at loads less than 10 grams and at penetration depths less than 1 micrometer. The results of these measurements are discussed in the light of theories which attempt to relate mechanical properties of amorphous alloys to the bonding character of the outer electrons of the component elements. 14 refs., 6 figs., 1 tab.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5958744
- Report Number(s):
- SAND-85-2562C; CONF-860495-3; ON: DE86009278
- Country of Publication:
- United States
- Language:
- English
Similar Records
Relationship between interatomic bonding and electron transport in plasma deposited amorphous metal alloys
Vibrational density of states in amorphous Ni/sub 1-//sub x/B/sub x/ alloys and c-Ni/sub 2/B
Related Subjects
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
AMORPHOUS STATE
AUGER ELECTRON SPECTROSCOPY
BORIDES
BORON COMPOUNDS
COATINGS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DATA
DIFFRACTION
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
EXPERIMENTAL DATA
FILMS
HARDNESS
INFORMATION
IRON BORIDES
IRON COMPOUNDS
IRON PHOSPHIDES
MECHANICAL PROPERTIES
MICROHARDNESS
MICROSCOPY
MICROSTRUCTURE
NICKEL BORIDES
NICKEL COMPOUNDS
NICKEL PHOSPHIDES
NUMERICAL DATA
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
PROTECTIVE COATINGS
SCATTERING
SPECTROSCOPY
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
WEAR
X-RAY DIFFRACTION