The present invention relates to a method of producing a SiCSi composite component. The method includes preparing a first molded body containing SiC particles by a 3D printing method, wherein the first molded body has a first average pore diameter M.sub.1;

forming a second molded body, in which the first molded body and a dispersion containing carbon particles are brought into contact so that the pores are impregnated with the carbon particles, wherein the carbon particles have a secondary particle having an average particle diameter M.sub.2, and the carbon particles satisfy the following formula:

M.sub.2M.sub.1/10; and

forming a SiCSi composite component by carrying out that the second molded body is impregnated with a metallic Si and is reactively sintered;

wherein the content of Si is in the range of 5% by mass to 40% by mass in the SiCSi composite component.

A sensor element has a cross-sectional area that increases either uniformly or gradually from a positive (+) electrode side toward a negative () electrode side, thereby leading a hot spot, which attempts to move to the negative electrode side, to a lower resistance side. A position that is at nearly equal distances from paired electrodes formed on either end of the sensor element is set as a hot spot generating position, so as to avoid damage to the electrodes due to heat emitted by the hot spot.

A sensor element has a cross-sectional area that increases either uniformly or gradually from a positive (+) electrode side toward a negative () electrode side, thereby leading a hot spot, which attempts to move to the negative electrode side, to a lower resistance side. A position that is at nearly equal distances from paired electrodes formed on either end of the sensor element is set as a hot spot generating position, so as to avoid damage to the electrodes due to heat emitted by the hot spot.

A SiC Freestanding Film Structure capable of preventing a functional surface of a SiC Freestanding Film Structure from being affected by a film thickness and improving strength by increasing the film thickness, the SiC Freestanding Film Structure is formed by depositing a SiC layer through a vapor deposition type film formation method. The SiC layer is deposited with respect to a first SiC layer serving as a functional surface in the SiC Freestanding Film Structure. Focusing on the functional surface and a non-functional surface positioned on front and back sides of any particular portion, the functional surface has smoothness higher than that of the non-functional surface.

A SiC Freestanding Film Structure capable of preventing a functional surface of a SiC Freestanding Film Structure from being affected by a film thickness and improving strength by increasing the film thickness, the SiC Freestanding Film Structure is formed by depositing a SiC layer through a vapor deposition type film formation method. The SiC layer is deposited with respect to a first SiC layer serving as a functional surface in the SiC Freestanding Film Structure. Focusing on the functional surface and a non-functional surface positioned on front and back sides of any particular portion, the functional surface has smoothness higher than that of the non-functional surface.

An inorganic shell is ball-shaped and hollow, and includes silica and crystalline inorganic powder sintered together. A resin composition has the inorganic shells and the resin composition has certain dieletric characteristics. A method for making the inorganic shell is also provided.

An inorganic shell is ball-shaped and hollow, and includes silica and crystalline inorganic powder sintered together. A resin composition has the inorganic shells and the resin composition has certain dieletric characteristics. A method for making the inorganic shell is also provided.

A rotomolded lid for a meter box and a method of making the same are provided. The lid is formed in a rotomold process that embeds a pair of rebars within a hollow lid product. Concrete is then poured into the hollow portion and allowed to cure. The end result is a reinforced meter box lid that is configured to handle loads of up to 16,000 lbs. In addition, the presence of the rebars, which are ferromagnetic, allows a metal detector to detect the presence of the lid should it ever be inadvertently covered over or otherwise obscured from view. Furthermore, the central lid portion may also include a passageway covered by a hinged door to permit access to the meter box without having to lift up the lid itself. Another passageway, along with an associated countersunk portion in an upper lid surface, permits a wireless transponder to be positioned therein and connected to meter equipment in the box.

A rotomolded lid for a meter box and a method of making the same are provided. The lid is formed in a rotomold process that embeds a pair of rebars within a hollow lid product. Concrete is then poured into the hollow portion and allowed to cure. The end result is a reinforced meter box lid that is configured to handle loads of up to 16,000 lbs. In addition, the presence of the rebars, which are ferromagnetic, allows a metal detector to detect the presence of the lid should it ever be inadvertently covered over or otherwise obscured from view. Furthermore, the central lid portion may also include a passageway covered by a hinged door to permit access to the meter box without having to lift up the lid itself. Another passageway, along with an associated countersunk portion in an upper lid surface, permits a wireless transponder to be positioned therein and connected to meter equipment in the box.

The present invention provides a composition, a gypsum board and their preparation method and the use of ascorbic acid as an anti-sagging additive in a gypsum board. Said gypsum board comprises set gypsum prepared from the composition; while said composition comprises hemi-hydrate gypsum, water and a compound comprising ##STR00001##
group and no carboxylate groups. The set gypsum prepared from the said composition shows better anti-sagging or deformation resisting property. The gypsum board of the present invention is hardly distorted and has stronger stability even in the condition of high humidity, thus improve the quality of the gypsum board to meet the demands of the customer.