High Thermal Conductivity Zirconia Ceramic Parts Press Switch Substrate

High Thermal Conductivity 95% Alumina Zirconia Ceramic Press Switch Substrate

This product is customized following our Poland customer, the tolerance to the inner diameter is +0.015mm,-0.00mm, and we make it very easily. The most precision tolerance we ever produce is +/-0.005mm, it's a tiny zirconia

insulating pin.

Zirconia ceramic is the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance,but relatively low strength and fracture toughness.Alumina ceramics are generally white but may also be pink or ivory.The color is derived from either the sintering additives or impurities in the raw materials.

Material		Alumina				Zirconia
Properties	Units	AL997	AL995	AL99	AL95	ZrO2
%Alumina	——	99.70%	99.50%	99.00%	95%	——
Color	——	Ivory	Ivory	Ivory	Ivory & White	ivory white
Permeability	——	Gas-tight	Gas-tight	Gas-tight	Gas-tight	Gas-tight
Density	g/cm³	3.94	3.9	3.8	3.75	5.89
Straightness	——	1‰	1‰	1‰	1‰	1‰
Hardness	Mohs Scale	9	9	9	8.8	8.5
Water Absorption	——	≤0.2	≤0.2	≤0.2	≤0.2	0
Flexural Strength (Typical 20℃)	Mpa	375	370	340	304	1200
Compressive Strength (Typical 20℃)	Mpa	2300	2300	2210	1910	5700
Coefficient of Thermal Expansion (25℃ to 800℃)	10-6/℃	7.6	7.6	7.6	7.6	10
Dielectric Strength (5mm Thickness)	AC-kv/mm	10	10	10	10	——
Dielectric Loss 25ºC@1MHz	——	< 0.0001	< 0.0001	0.0006	0.0004	0.001
Dielectric Constant	25º C@1MHz	9.8	9.7	9.5	9.2	29
Thermal Conductivity (25℃)	W/m·K	35	35	34	20	3

Zirconia ceramic substrate

Company Introduction

Mingrui ceramic manufacture and provides alumina ceramic components for a wide range of application like Mechanical Equipment, Electronic & Electrical, Oil Drilling, Medical, Chemical Industry etc. According to actual application and customer's requirement, the purities vary from 95%-99.7% and the forming methods will be different. The forming methods applied in our plant include dry pressing, isostatic pressing, injection moulding, extrusion moulding. With experienced engineers and talented workers, we are confident to offer high quality, high precision, complex components for customers worldwide.

FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have any other question, pls feel free to contact us .