Material list
High purity Alumina ceramics series
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Nishimura handle high purity alumina (99.7~99.99%)
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Alumina ceramics
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Alumina is a fine ceramic with remarkable electrical insulation, corrosion resistance against acids and alkalis, and abrasion resistance. It is applied to various purposes including machine parts and electronic equipment parts.
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Heat-radiating ceramics
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N-9H and N-6H, mainly made from alumina, are categorized in this group.
These materials have a high thermal emissivity, and they are applied to new types of heat sinks utilizing heat radiation.
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Anti-Plasma material / Yttria
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Yttria has high abrasion resistance against corrosive gases and plasma, and is applied to semiconductor device parts, etc.
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Zirconia ceramics
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Zirconia has high electrical insulation, chemical resistance, and remarkable strength at ordinary temperatures in comparison to other ceramics. It is used for abrasion-resistant parts, machine parts, etc.
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N-600 Zero thermal expansion ceramics
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Nishimura has developed new ceramic material grade which has almost zero thermal expansion near the room temperature.
Compare with other type of low thermal expansion ceramics, N-600 has outstanding performance below.
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Si3N4 Sillicon nitride ceramics・SiC Carbon nitride ceramics
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Si3n4 is the only ceramics material with a greater mechanical strength than Alumina or Carbon nitride, and with a high thermal shock resistance. It is often applied for parts require high mechanical strength in a high temperature area.
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Aluminum Nitride
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Well thermal conductivity and electric insulation.
Excellent at thermal shock.ALN-170,200,HYO are available.
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Zircon ceramics
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Zircon which is composed of ZrSIO4 is excellent at thermal shock resistance and low thermal expansion.
Zircon is really good for heat-resistant ceramics because it also has hi-level electric insulation at high temperatures.
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Aluminum Titanate
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Aluminum Titanate is composed of Al₂O₃ and TiO₂. These ceramics have the pretty good non-wettability for molten metal.
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Forsterite
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This product is based on Forsterite. High quality Forsterite does not contain any free Magnesia crystals, and we are one of the corporation which can provide high quality Forsterite.
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Steatite ceramics
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Crystals of MgO and SiO2 constitute a steatite.
Main raw material is processed talc, and we add few kinds of auxiliaries.
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-This ceramic is MgO･Al2O3･SiO2 kind, and it’s consist on 2MgO･2Al2O3･5SiO2 which is cordierite crystal. This material have two type, called N-23 and N-53.
-Especially, N-53 has much Nishimuras originality. The N-53s special feature is surface which is like after glazed.
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-Zircon（ZrO2･SiO2）is one of the material which has good thermal shock resistance.
-We mixed this zircon with cordierite. This ceramics advantages are better resistance of thermal shock and stabler firing shrinkage.
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Mullite
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Mullite has high intensity as a alumina ceramic in room temperature. Also it is strong to high temperature condition, and it has small CTE.
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Porcelain (Standerd Porcelain)
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This SiO2 and Al2O3 kinds ceramic is the most popular and low cost material.
As a high tension insulator, it is used for suspension-type insulator, pin-type insulator, or bushing. Also it is used for home appliance heater supporter, porcelain bushing, plug, socket, and wiring parts as a low or middle tension insulator. In case of it is used in outside, we will coat its by a glaze.
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Lithium ceramic N-10J（β-spodumene, petalite）
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Li2O-AL2O3-SiO2 kind ceramic. People call β-spodumene or petalite.
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Color ceramic
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Color ceramic
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Visible light high reflective ceramic N-9000T
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Super pure and ultrafine particle alumina. Reflect electromagnetic wave of visible light region very well. reflectivity is 90 – 94%.
Also it is strong for ultraviolet rays. Always keep color of the ceramic.
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Other ceramics
Nishimura Porcelain is providing “low extension rate ceramics” with extreme resistance against heat shock, “high visible light reflectivity ceramics” with high resistance against heat and ultraviolet light, etc.
