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AssigneeROLLS-ROYCE plc
InventorsChristopher SELLARS, Andrew HEWITT
Estimating the term…
An apparatus (10) to test the adhesion strength and/or cohesive strength of a coating (12) comprises a first member (14) having an aperture (16) and a second member (18) locatable in the aperture (16) in the first member (14). A temperature sensor (20) is arranged to measure the temperature of the first member (14). A third member (22) and a fourth member (24) are mounted on the first member (14). The third member (22) has a first strain gauge (26) to measure the strain in a first direction and the fourth member (24) has a second strain gauge (28) to measure the strain in a second direction perpendicular to the first direction. A device (30) is arranged to apply a tensile load to move the second member (18) from a first position where the second member (18) is located in the aperture (16) in the first member (14) and the surfaces (15, 19) of the first and second members (14, 18) are substantially flush to a second position where the surfaces (15, 19) of the first and second members (14, 18) are not flush and a load sensor (32) is arranged to measure the adhesive strength and/or cohesive strength of a coating (12) deposited on the surfaces (15, 19) of the first and second members (14, 18).
An apparatus to test the adhesion strength and/or cohesive strength of a coating comprises a first member having an aperture and a second member locatable in the aperture in the first member, the first and second members having surfaces, a temperature sensor arranged to measure the temperature of the first member, a first strain gauge to measure the strain in a first direction, a second strain gauge to measure the strain in a second direction perpendicular to the first direction, a device to apply a tensile load to move the second member from a first position where the second member is located in the aperture in the first member and the surfaces of the first and second members are substantially flush to a second position where the surfaces of the first and second members are not flush and a load sensor to measure the adhesive strength and/or cohesive strength of a coating deposited on the surfaces of the first and second members, means to analyse the tensile load, the temperature of the first member, the strain in the first direction, the strain in the second direction and the adhesion strength or cohesive strength of the coating to determine the relationship between the temperature and the adhesion strength and/or cohesive strength of the coating.
A method of testing the adhesion strength and/or cohesive strength of a coating comprising the steps of:
An apparatus to test the adhesion strength and/or cohesive strength of a coating comprises a first member having an aperture and a second member locatable in the aperture in the first member, the first and second members having surfaces, a temperature sensor arranged to measure the temperature of the first member, a first strain gauge to measure the strain in a first direction, a second strain gauge to measure the strain in a second direction perpendicular to the first direction, a device to apply a tensile load to move the second member from a first position where the second member is located in the aperture in the first member and the surfaces of the first and second members are substantially flush to a second position where the surfaces of the first and second members are not flush and a load sensor to measure the adhesive strength and/or cohesive strength of a coating deposited on the surfaces of the first and second members.
A method of testing the adhesion strength and/or cohesive strength of a coating comprising the steps of:
Dependencies are inferred from the claim text.