honeycomb ceramic heat accumulation substrate has low heat expansion coefficient, large surface area, good heat stability

Honeycomb ceramic heat media,as the media of heat storage and heat exchange,has been widely applied in the fields of metallurgy,petroleum and chemical industry,electric power,boiler and so on,honeycomb ceramic heat media are made of corundum-mullite,cordierite-mullite,cordierite,mullite,zirconia-mullite,carborundum and so on with different hole shapes,such as square hole and hexagon hole,different wall thickness from 0.5mm to 5mm,and different specifications:such as 100×150×100mm,100×100×100mm,150×150×150mm,150×150×300mm and so on, at the same time,we can offer th products according to customer's requirements.

The size,parameter,physical performance,chemical component refer to following tables:

 

1.chemical composition:

 

Composition	Alumina Ceramic	Mullite	Cordierite Dense	Cordierite Porous	Stoneware
SiO2	42.8	27.8	47.8	47.9	70.2
AI2O3	50.5	70.1	35.1	33.7	19.4
MgO	-	-	8.5-9.5	12-13	0.18
Fe2O3	0.5	0.8	0.78	1.0	0.5
Na O2+K o2+Ca O	4.8	1.0	2-2.5	1.03	3.3
TiO2+BaO	-	-	0.39	0.78	0.25
High Aluminum	Al2O3>90%	Al2O3>90%	High Silicon	SiO2>98%	SiO2>98%

 

2.Speciality & Sizes:

Quantity of Channels	Channel density (cm2)	Width of channel (mm)	Specific surface area(m2/m3)	Hole fraction (%)
5x5	1	26.3	117	77
13x13	5(1)	9.2	278	64
20x20	11(2)	6.4	455	73
25x25	18(3)	4.9	540	67
40x40	46(7)	3.0	825	65
50x50	72(11)	2.3	1005	57

 

3.Physics performance:

Performance	Units	Alumina Ceramic	Mullite	Cordierite Dense	Cordierite Porous	Stoneware
Density	g/cm3	2.7	2.1	2.47	1.9	2.3-2.4
The hot coefficient of expansion 20-1000	10-6/K-1	5-6	4.5-5	2-2.5	1.5-1.8	4-7
Heat capacity 20-1000	J/kgk	800-900	850-1050	800-1200	750-800	840-920
Heat resisting assaulting	k	150	350	250	300	250
The highest using temperature		1400	1600	1300	1200	1100

heat exchange media