Deuterium and helium-ion irradiation effects on TiB₂ coatings

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:6260768

Das, S. K.; Kaminsky, M.

The surface damage and erosion of chemically vapor deposited TiB/sub 2/ coatings and commercial grade Ti, caused by 40-, 60- and 120-keV D/sup +/ and /sup 4/He/sup +/ irradiation, has been studied for the as deposited coatings and for the coating surfaces that were mechanically polished prior to irradiation. SEM analysis of polished TiB/sub 2/ samples irradiated with D/sup +/ and /sup 4/He/sup +/ to a dose of 3.1 x 10/sup 18/ ions/cm/sup 2/ reveal significant surface damage due to blistering and flaking whereas for identical irradiation conditions, the as deposited TiB/sub 2/ coatings show very little damage. For similar irradiation conditions the Ti metal samples showed blistering for the /sup 4/He/sup +/ irradiation case but no significant surface damage for the D/sup +/ case. Estimates of the irosion yields due to blister exfoliation in polished TiB/sub 2/ samples show an increase with increasing projectile energy for the total dose studied.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6260768
• Report Number(s): CONF-790442--14
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
BORIDES
BORON COMPOUNDS
CHARGED PARTICLES
COATINGS
DEUTERONS
ELEMENTS
EROSION
HELIUM IONS
METALS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
TITANIUM
TITANIUM BORIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VAPOR DEPOSITED COATINGS