Abstract: Provided is a method of preparing a bioactive ceramic-coated composite. The method includes coating calcium phosphate-based ceramic on a ceramic substrate; and thermally treating the coated calcium phosphate-based ceramic layer in a water vapor atmosphere. The bioactive ceramic-coated composite prepared using the method in which the decomposition of hydroxyapatite is suppressed can be used for artificial bioactive tissues which are harmless to the human body and satisfy chemical and mechanical requirements.

Abstract: Provided are a multi-component ceramic nano-composite powder that is suitable for forming a sintered ceramic composite and a method of preparing the same. The ceramic nano-composite powder is formed of secondary particles obtained by sintering multi-component ceramic particles with a nano-sized primary particle diameter in nano-scale. The multi-component ceramic particles may be formed of zirconia and alumina. A sintered zirconia-alumina composite formed by sintering the nano-composite powder has greater flexural strength than a sintered composite prepared by mechanically mixing zirconia powder and alumina powder and sintering the mixture.

Abstract: A sintered bioactive ceramic composite for implant having high strength and superior bioactivity and a method of preparing the same are provided. The composite includes a zirconia-alumina nano-composite-powder and an apatite-related compound and is useful for a load-bearing implant.

Abstract: A ceramic filter and method for preparing the same. The method for preparing the ceramic filter according to the present invention is characterized in comprising the steps of: (a) coating firstly a ceramic green paper prepared by using a slurry solution comprising ceramic fiber of 0.1-10 length, with an aluminum silicate solution and drying the firstly coated paper; (b) coating secondly the dried ceramic green paper with an aluminum phosphate solution and drying the secondly coated paper; and (c) calcining the dried ceramic green paper obtained from the step (b). The ceramic filter according to the present invention has excellent mechanical strength since the bonding strength between ceramic fibers is very high, and shows good porosity, gas permeability, and efficiency for capturing microparticles since the pores between the ceramic fibers are less blocked, and thus can be very usefully applied to gas exhaustion system for automobile.

Abstract: A foldable toilet-sitting appliance (10) includes a brace (1) and a top (2). Front and rear leg assemblies (11, 12) of the brace (1) are each U-shaped pipes, with open ends of the “U” serving as feet and bent strengthening poles (111, 121) fixed across the open ends. Four connectors (3) are fixed to the front and rear leg assemblies (11, 12). Each connector (3) has a slide notch (31) which extends horizontally. Two top and two bottom side-support bodies (13, 131, 132) of the brace (1) are U-shaped pipes, with the open ends having spring fasteners (130). The ends of side-support bodies (13) fit into the connectors (3), and the spring fasteners (130) are free to pivot therein due to the slide notches (31) to permit folding between a closed and an open position. A top (2) having an opening (21) therein clips to the brace through clips (22).

Abstract: A foldable toilet-sitting appliance (10) includes a brace (1) and a top (2). Front and rear leg assemblies (11, 12) of the brace (1) are each U-shaped pipes, and a backrest support (6) is mounted on the uppermost portion of the rear leg assembly (12) to project upward and rearward. Four connectors (3) are fixed to the front and rear leg assemblies (11, 12). Each connector (3) has a slide notch (31) which extends horizontally. Two top and two bottom side-support bodies (13, 131, 132) of the brace (1) are U-shaped pipes, with the open ends having spring fasteners (130). The ends of side-support bodies (13) fit into the connectors (3), and the spring fasteners (130) are free to pivot therein due to the slide notches (31) to permit folding between a closed and an open position. A top (2) having an opening (21) therein clips to the brace through clips (22).

Abstract: A foldable seat (10) includes a brace (1) and a top (2). Front and rear leg assemblies (11, 12) of the brace (1) are each U-shaped pipes, with open ends of the “U” serving as feet and strengthening poles (111, 114, 124) fixed across the open ends. Four connectors (3) are fixed to the front and rear leg assemblies (11, 12). Each connector (3) has a slide notch (31) which extends horizontally. Two top and two bottom side-support bodies (13, 131, 132) of the brace (1) are U-shaped pipes, with the open ends having spring fasteners (130). The ends of side-support bodies (13) fit into the connectors (3), and the spring fasteners (130) are free to pivot therein due to the slide notches (31) to permit folding between a closed and an open position. A top (2) clips to the brace through clips (21, 22).