摘要:
The strength of a join between a ceramic and an associated non-ceramic is determined using an ultrasonic microscope. A converging ultrasonic beam (B) is radiated against a point (P) on a surface of the ceramic (1), said point being a predetermined distance away from the join (3) between the ceramic (1) and the associated non-ceramic (2). Data on the intensities of interference waves at respective predetermined variations of the relative distance between a probe (5) of the ultrasonic microscope and the ceramic (1) are collected. The residual stress at the point is calculated on the basis of the cycle of echo intensities of the interference waves for the respective predetermined variations of the relative distance. The strength of the join is then determined on the basis the residual stress.
摘要:
The strength of a join between a ceramic and an associated non-ceramic is determined using an ultrasonic microscope. A converging ultrasonic beam (B) is radiated against a point (P) on a surface of the ceramic (1), said point being a predetermined distance away from the join (3) between the ceramic (1) and the associated non-ceramic (2). Data on the intensities of interference waves at respective predetermined variations of the relative distance between a probe (5) of the ultrasonic microscope and the ceramic (1) are collected. The residual stress at the point is calculated on the basis of the cycle of echo intensities of the interference waves for the respective predetermined variations of the relative distance. The strength of the join is then determined on the basis the residual stress.
摘要:
Disclosed is an alloy coating which can be advantageously applied to members for high temperature apparatuses so as to prolong the service life of the members. The alloy coating comprises an alloy. This alloy comprises: at least one member, as a base, selected from the group consisting of Re, Ir, Nb, Ta, Mo, and W; and at least one alloying element for imparting corrosion resistance. A method for forming the alloy coating, and a member for high temperature apparatuses, to which the alloy coating has been applied, are also disclosed.
摘要:
Disclosed is an alloy coating which can be advantageously applied to members for high temperature apparatuses so as to prolong the service life of the members. The alloy coating comprises an alloy. This alloy comprises: at least one member, as a base, selected from the group consisting of Re, Ir, Nb, Ta, Mo, and W; and at least one alloying element for imparting corrosion resistance. A method for forming the alloy coating, and a member for high temperature apparatuses, to which the alloy coating has been applied, are also disclosed.