Radiowave absorber and its manufacturing process

Details Radiowave absorber and its manufacturing process Radiowave absorber and its manufacturing process

1988-10-26

1990-08-28

Nelson, Peter A.

Communications: directive radio wave systems and devices (e.g.,

Radio wave absorber

With particular geometric configuration

427122, B05D 512

Patent

active

049529358

ABSTRACT:
A radiowave absorber comprises a porous ceramic matrix combined with carbon, where the carbon is combined on its surface and interior particularly in an amount not exceeding 2.7% by weight. A process for manufacturing a radiowave absorber is also disclosed. At least one kind of ceramic material selected from natural minerals or clay minerals, and artificial ceramic materials, is fired with a pore- or skeleton-forming material which can be burned away, whereby a sintered porous ceramic matrix is prepared. The matrix is fired in a furnace containing a reducing atmosphere and having a uniform temperature, while a gas or mist of hydrocarbon compound is introduced into the furnace.

REFERENCES:
patent: 3568195 (1971-03-01), Wesch et al.
patent: 3680107 (1972-07-01), Meinke et al.
patent: 3721982 (1973-03-01), Wesch
patent: 3938152 (1976-02-01), Grimes et al.
patent: 4023174 (1977-05-01), Wright
patent: 4024318 (1977-05-01), Forster et al.
patent: 4084161 (1978-04-01), Manning et al.
patent: 4283457 (1981-08-01), Kolsky et al.
patent: 4358772 (1982-11-01), Leggett
patent: 4465984 (1984-08-01), McDowell
patent: 4538151 (1985-08-01), Hatakeyama et al.
patent: 4604276 (1986-08-01), Oblas et al.
patent: 4698256 (1987-10-01), Giglia et al.
patent: 4748449 (1988-05-01), Landers, Jr. et al.
patent: 4752525 (1988-06-01), Oyachi et al.
patent: 4786548 (1988-11-01), Place, Jr.

Affiliated with

Also associated with

Rating

Radiowave absorber and its manufacturing process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radiowave absorber and its manufacturing process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiowave absorber and its manufacturing process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1592615