摘要:
A substrate treatment device includes a substrate processing chamber where a plasma treatment process is performed, a rib structure provided in an upper portion of the substrate processing chamber, the rib structure having a form of a three-dimensional structure bent along at least one direction, dielectric material structures, each having an edge fixed to the rib structure; and an antenna provided in a portion of each of dielectric materials facing an exterior of the substrate treatment device, the antenna being connected with a high frequency power source and forming an inductive electromagnetic field in the substrate processing chamber.
摘要:
A high-frequency inductive heating apparatus of ceramic material, whereby the nonconductive ceramic specimen in which induced current is not generated at room temperature is rapidly heated in a preheating housing, and a pressure-less sintering method using the same, are disclosed. The high-frequency inductive heating apparatus includes a preheating housing placed in a chamber to preheat a ceramic material; an induction coil installed around the preheating housing for supplying induced current so that the preheating housing is heated; and a high-frequency current generator for supplying high-frequency current to the induction coil. According to the present invention, inductive heating is made possible of nonconductive ceramic material for which inductive heating has thus far been impossible because induced current is not generated at room temperature, so that rapid heating by the self-heating of the specimen of ceramic material is possible.
摘要:
The flameproof resin composition according to the present invention (A) 100 parts by weight of a rubber modified polystyrene resin containing (a1) 20 to 100% by weight of graft copolymer prepared by graft-polymerizing 5 to 65% by weight of a rubber polymer, 30 to 95% by weight of an aromatic vinyl monomer, 0 to 20% by weight of a monomer copolymerizable with said aromatic vinyl monomer and 0 to 15% by weight of a monomer for providing good processability and heat resistance; and (a2) 0 to 80% by weight of copolymer prepared by polymerizing 60 to 90% by weight of an aromatic vinyl monomer, 10 to 40% by weight of a monomer copolymerizable with said aromatic vinyl monomer and 0 to 30% by weight of a monomer for providing good processability and heat resistance; and (B) 15 to 40 parts by weight of a ring-shaped alkyl phosphonic acid compound.
摘要:
A thermoplastic flame retardant resin composition according to the present invention comprises: (A) about 40˜95 parts by weight of a styrenic resin; (B) about 5˜60 parts by weight of a polyphenylene ether, (C) about 0.1˜40 parts by weight of a rubber modified polystyrene resin containing about 40˜65% by weight of a rubber and about 0.1˜8% by weight of acrylonitrile based on 100 parts by weight of the sum of (A) and (B); and (D) about 5 to 30 parts by weight of an aromatic phosphoric acid ester compound based on 100 parts by weight of the sum of (A) and (B).
摘要:
The present invention relates to a flame retardant thermoplastic resin composition that contains a polyphenylene ether resin and a phenol resin derivative, both of them having good char formability, regardless of the base resin. A flame retardant thermoplastic resin composition according to the present invention comprises (A) 100 parts by weight of a thermoplastic resin as a base resin, (B) about 0.1˜100 parts by weight of polyphenylene ether, (C) about 0.1˜100 parts by weight of a phenol resin derivative, and (D) about 0.1˜50 parts by weight of a phosphorous compound or a mixture of phosphorous compounds. The thermoplastic resin composition may contain up to 5.0 parts by weight of an anti-dripping agent based on 100 parts by weight of the base resin.
摘要:
The present invention relates to a flame retardant thermoplastic resin composition that contains a phenol resin derivative having good char formability, regardless of the base resin. A flame retardant thermoplastic resin composition according to the present invention comprises (A) 100 parts by weight of a thermoplastic resin as a base resin, (B) about 0.1˜100 parts by weight of a phenol resin derivative, and (C) about 0.1˜50 parts by weight of a phosphoric acid ester morpholide compound or a mixture of phosphoric acid ester morpholide compounds. Another flame retardant thermoplastic resin composition according to the present invention comprises (A) 100 parts by weight of a thermoplastic resin as a base resin, (B) about 0.1˜100 parts by weight of polyphenylene ether, (C) about 0.1˜100 parts by weight of a phenol resin derivative, and (D) about 0.1˜50 parts by weight of a phosphoric acid ester morpholide compound or a mixture of phosphoric acid ester morpholide compounds. The thermoplastic resin composition containing polyphenylene ether resin may also contain up to 5.0 parts by weight of an anti-dripping agent based on 100 parts by weight of the base resin.
摘要:
The present invention relates to a flame retardant thermoplastic resin composition that comprises (A) about 40 to 95 parts by weight of a rubber modified styrene-containing resin, (B) about 5 to 60 parts by weight of polyphenylene ether resin, (C) about 2 to 30 parts by weight of a styrene-containing copolymer resin having about 5 to 18 % by weight of acrylonitrile in the copolymer per 100 parts by weight of the sum of (A) and (B), (D) about 0.5 to 20 parts by weight of an oxaphospholane compound per 100 parts by weight of the sum of (A) and (B), and (E) about 0 to 30 parts by weight of a phosphoric acid ester compound per 100 parts by weight of the sum of (A) and (B).
摘要:
The present invention relates to a flame retardant styrenic resin composition that comprises (A) about 5 to 95 parts by weight of a rubber modified styrene-containing resin; (B) about 95-5 parts by weight of polyphenylene ether; and (C) about 3-20 parts by weight of an oxaphospholane compound based on 100 parts by weight of the sum of (A) and (B). The resin composition of the present invention exhibits good flame resistance without the use of halogen flame retardant and does not emit harmful gases when burned.
摘要:
A method for fabricating a sintered annular nuclear fuel pellet includes molding nuclear fuel powder or granule, an oxide of a fissile element (M), to fabricate an annular nuclear fuel green body. A rod-like shaped structure is inserted into the annular nuclear fuel green body and sintered in a slight oxidizing gas atmosphere such that the oxide of the fissile element has a balanced O/M ratio higher than a desired O/M ratio (oxygen/fissile element) of a final sintered annular nuclear fuel pellet, while being maintained in a cubic phase. The sintered annular nuclear fuel pellet is then reduced in a reductive gas atmosphere so as to have the desired O/M ratio in the state that the rod-like shaped structure is inserted.
摘要:
A method for fabricating a sintered annular nuclear fuel pellet includes molding nuclear fuel powder or granule, an oxide of a fissile element (M), to fabricate an annular nuclear fuel green body. A rod-like shaped structure is inserted into the annular nuclear fuel green body and sintered in a slight oxidizing gas atmosphere such that the oxide of the fissile element has a balanced O/M ratio higher than a desired O/M ratio (oxygen/fissile element) of a final sintered annular nuclear fuel pellet, while being maintained in a cubic phase. The sintered annular nuclear fuel pellet is then reduced in a reductive gas atmosphere so as to have the desired O/M ratio in the state that the rod-like shaped structure is inserted.