Nishimura Advanced Ceramics produces porous Alumina in levels of micro-porous ceramics and nano-porous ceramics.
Customize porosity and pore size according to the customer’s requests.
pore size：φ0.1μｍ(100nm)~50µm
shape： ball, bar, plate, pellet. Customized products are also possible; feel free to ask here.
If you are looking forward to finding a vacuum chuck plate, please enter here.
Features of porous ceramic
- Passing liquid or gas through
- Lighter than other ceramics
- Outstanding small pore size 0.1um(100nm)
By these features, especially the outstanding small pore size of 0.1um, Nishimura’s porous ceramics can be applied in many ways.
Common applications of porous ceramics
- Liquid absorption.
- Liquid separation. After taking water repellent treatment, it can separate oil and water.
- Carrier of fragrance, deodorant, and germicide. It can support any liquid and keep it for a long time.
- Bactericide. It can support silver or another kind of germicide.
- Filter Porous ceramic is used as a liquid or gas filter/separator.
- Catalyst can keep platinum oxide. providing deodorization/decomposition of exhaust gas and also removing malodorous components.
- Nano bubble. It can be used as a nano-bubble generator. We can also arrange porosity, pore size, and type of shapes according tothe customer’s request. Please feel free to ask us if you are interested.
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When we take the original water repellent treatment, the ceramic doesn’t soak up the water-based ink. |
Without the water repellent treatment, it absorbs water-based ink. |
The characteristic chart
| R-200 | R-203 | N-99EP | ||
| Main Composition(Al2O3) | 91% | 91% | 99% | |
| Bulk specific gravity | 1.5 | 1.6-1.7 | 2.5 | |
| porosity percentage | 55.0 | 51.0 | 35.4 | |
| pore size*（μm） | 1.4 | 0.7 | 0.1(100nm) | |
| Water absorption（%） | 35.0 | 30.0 | 14.0 | |
| Bending strength（MPa） | 200 | |||
| Max.Heat resistant temperature(℃) | 1100 | 1100 | ||
| Shape | Ball, Pellet, Round Bar, Square Bar, Pipe, Plate, Tube, and Customized Products. | |||
| Example | Liquid absorption | absorbs and keeps any liquid. | ||
| Liquid separation | After taking water repellent treatment, it can separate oil and water. | |||
| Carrier of fragrance, deodorant, and germicide. | It can support any liquid and keep it for a long time. | |||
| Bactericide | It can support silver or another kind of germicide. | |||
| Filter | Porous ceramic is used as a filter for liquids or gases for filter/separation. | |||
| Catalyst |
Catalyst can keep platinum oxide. providing deodorization/decomposition of exhaust gas and also removing malodorous components. |
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| Nano bubble | It can be used as a nano-bubble generator | |||
| Item stock number | N-99SP |
| Component | Alumina99.9% |
| Bulk specific gravity | 2.5 |
| Porosity | 35% |
| Pore size | 55nm (0.055μm) |
| Water absorption | 15% |
*Median pore diameter
Large-pore porous ceramics（Available for large size）
This material is a porous ceramic that has a rougher pore size. Pore size (Median diameter) is 2～16μm. Porosity is higher as well.
It is available to make a Maximum size ∮of 500 mm.
| Materia No. | NK-200 | NK-400 | NK-900 | NK-1500 | Note |
| Material | Alumina | ||||
| Porosity % | 46.9 | 51.7 | 47.5 | 47.2 | JIS R1655 |
| Pore Size*（um） | 2.0 | 3.8 | 9.3 | 15.5 | |
| Shape | Square plate, Round plate, Square bar | ||||
| Usage | Vacuum chuck, Filter, and so on. | ||||
*Median pore diameter
R-200 Porous alumina crucible
We have made a crucible with R-200. This crucible is made by a mechanical press.
Therefore, it is possible to be purchased at a more affordable price.
It has very high water absorption, so it will support a liquid for a long time.
It is possible to support any kind of liquid, such as fragrance or silver liquid.
It will also work as a liquid separation.
Sample size φ40×50H
N-99EP nano-porous alumina crucible
N-99EP is Alumina 99% ceramic-based nanoporous ceramics produced in the Nishimura factory in Kyoto, Japan.
- Porosity 35％
- Pore size 0.1μm
- Water absorption 13.9%
Tiny Porous ceramics
 4mm×4ｔ |
 2.8ｍｍ×0.9ｔ |
Porous ceramics made by NK-3000W.
Commonly used as a vacuum chuck, suction pad, and filter.