The microwave absorbing behaviour of Mn-Zn ferrite sintered at 1100,1200,1300,1400 and1500℃ has been investigated.The phase constitution of the ferrite was ana
Soft ferrites have excellent a.c.permeability,but it is reduced under stress.It has a hyperbolic re-lationship between permeability μ and stress σ or alinear
Possibility to dope Y<sub>2</sub>O<sub>3</sub> particles into the sur-face of superalloy sample by means of laserirradiation and the relationship betweenhomogen
The coarse WC particles ceramic-metal com-posite coatings with WC density of 67 wt-% andthickness of 1.0-1.2 mm have been cladded on20Ni4Mo steel surface by a 2