1. A two-phase glass-like carbon member comprising: a porous glass-like carbon base; and a dense glass-like carbon surface layer coating a surface of the porous glass-like carbon base, wherein the dense glass-like carbon surface layer has a thickness in the range from 0.4 mm to 5 mm.
2. A method of manufacturing the two-phase glass-like carbon member stated in claim 1 comprising the steps of: forming a porous thermosetting resin base by heating and compressing a workpiece of a solid thermosetting resin for curing and molding; forming a two-layer structure by coating a surface of the porous thermosetting resin base with a dense thermosetting resin surface layer; and completing a two-phase glass-like carbon member including a porous glass-like carbon base and a dense glass-like carbon surface layer formed on the porous glass-like carbon base by heating the two-layer structure for carbonization.
3. The manufacturing method according to claim 2 further comprising the step of curing the porous thermosetting resin base at a temperature between 200 and 300\xb0 C. for a time between 10 and 100 hr for a post curing process before the step of forming the two-layer structure by coating the surface of the porous thermosetting resin base with the dense thermosetting resin surface layer.
4. The manufacturing method according to claim 2, wherein the porous thermosetting resin base and the dense thermosetting resin surface layer are formed of the same thermosetting resin.
5. The manufacturing method according to claim 4, wherein the thermosetting resin forming the porous thermosetting resin base and the dense thermosetting resin surface layer is a phenolic resin.
6. The two-phase glass-like carbon member according to claim 1, wherein the porous glass-like carbon base has ten or less pores of diameters not smaller than 10 \u03bcm in a region of 100 \u03bcm2.
7. The two-phase glass-like carbon member according to claim 1, wherein the porous glass-like carbon base has pores of diameters exceeding 10 \u03bcm occupying 1% or above of the area of a region of 100 \u03bcm2.
8. The two-phase glass-like carbon member according to claim 1, wherein 1 cm3 of ethanol dropped in an area of the porous glass-like carbon base having a diameter between 50 and 100 mm passes through the specimen within 10 s.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A cooking plate supporting a food product in an oven that utilizes heated air comprising:
a substantially solid surface receiving a food product thereon and at least one aperture located at an outer periphery of the cooking plate with the at least one aperture permitting the heated air to flow therethrough.
2. The support of claim 1, wherein the at least one aperture further limits the reflection of incident microwave energy.
3. The support of claim 1, further comprising a plurality of legs.
4. The support of claim 3, wherein the plurality of legs comprises four legs.
5. The support of claim 3, wherein each of the plurality of legs is located at a corner of the cooking plate.
6. The support of claim 3, wherein each of the plurality of legs has a height of approximately 2.4 inches.
7. The support of claim 3, further comprising a skid that connects two of the plurality of legs.
8. The support of claim 7, wherein the skid has a rounded edge.