METHOD FOR MANUFACTURING AUTOEMISSION CATHODE MATRIX Russian patent published in 2002 - IPC

FIELD: electronic engineering; manufacture of cathode matrix around carbon material placed in glass plate holes. SUBSTANCE: graphite threads are passed into glass blank and half- finished vitrified fibers are obtained using similitude stretching method. Fiberglass block is assembled of alternating vitrified fibers and solid glass blanks, and then sintered and cut into matrices whereupon the latter are subjected to mechanical and chemical treatment. EFFECT: facilitated manufacture, enhanced mechanical strength and service life, improved reliability of emitter insulation. 4 cl, 3 dwg