Micro Porous Alumina Ceramics

Nishimura Advanced Ceramics produces Alumina based micro porous ceramics

Nishimura’s micro porous alumina ceramics contain a myriad of micro pores and based on alumina which can be more than 99%. By containing these micro pores, it can pass through liquid or gas which have smaller particle than pore. We can arrange porosity and pore size according to customer’s requests.

pore size:φ0.1μm~10µm
shape: ball,  bar, plate, pellet. Shaped products are also possible, feel to ask from here.

If you are looking forward to find vacuum chuck plate, please enter here.

Properties of porous ceramics

  • Passing liquid or gas through
  • Lighter than other ceramics
  • Outstanding small pore size 0.1um

By having these properties, especially outstanding small pore size 0.1um, Nishimura’s porous ceramics can be used in many ways.

Common applications of porous ceramics

  •  For liquid absorption It can absorb and keep any liquid.
  • Liquid separation After taking water repellent treating, it can separate oil and water.
  •  Carrier of fragrance, deodorant, and germicide. It can support any liquid, and keep the liquid for a long term.
  •  Bactericide It can support silver or another kind of germicide, and it is used as a bactericide.
  •  Filter Porous ceramic is used as a liquid or gas’s filter/separation. Catalyst can keep platinum oxide as well. Deodorization/ Decompose of exhaust gas. Malodorous component removing.
  •  Nano bubble It can be used as a nano-bubble generator. We can also arrange porosity, pore size, and type of shapes according to customer’s request. Please feel free to ask us  if you are interested.

When we take the original water repellent treating, the ceramic doesn’t soak up the water-based ink.

Without the water repellent treating, it absorbs water-based ink.

The characteristic chart

  R-200 R-200ST N-99EP N-99PM
Main Composition(Al2O3) 91% 91% 99% 99%
Bulk specific gravity 1.5 2.51 2.5 3.4
porosity percentage 55.0 27.14 35.4 8.1
pore size*(μm) 1.4 under measuring 0.1 1.3
Water absorption(%) 35.0 10.79 14.0 5.0
Bending strength(MPa)   Much Stronger than R-200
Under measuring
200  
Max.Heat resistant temperature(℃) 1100 1500   1400
Shape ball, pellet, round bar, square bar, pipe, plate, tube, and shaped products.
Example For liquid absorption It can absorb and keep any liquid.
Liquid separation After taking water repellent treating, it can separate oil and water.
Carrier of fragrance, deodorant, and germicide. It can support any liquid, and keep the liquid for a long term.
Bactericide It can support silver or another kind of germicide, and it is used as a bactericide.
Filter Porous ceramic is used as a liquid or gas’s filter/separation.
Catalyst It can keep platinum oxide as well. Deodorization/ Decompose of exhaust gas. Malodorous component removing.
Nano bubble It can be used as a nano-bubble generator

 *Median pore diameter

Bigger pore porous ceramics(Available for bigger shape)

粗粒タイプのポーラスセラミックス

This material is a porous ceramic which has rougher pore size. Pore size (Median diameter) is 2~16μm. Porosity is higher as well. 
It is available in big size (Max. ∮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  
 Usefulness Vacuum chuck, Filter, and so on.  

                              *Median pore diameter

R-200 Porous alumina crucible

ポーラスセラミックスR-200で作った容器

We have made a crucible by R-200. This crucible is made by mechanical press, so possible to supply in lower price.
It has very high water absorption, so it will support a liquid 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 Porous alumina crucible

ポーラスセラミックス N-99EP

 

 

 

For inquiries and further information:

Nishimura Porcelain Co., Ltd.
npc-e3@nishimuratougyou.co.jp 
Please feel free to contact us on any matters concerning industrial ceramics.
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