Imerys NYAD® 400 Wollastonite

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

(Viewing data as-entered. Click here to return)

Imerys NYAD® 400 Wollastonite
Categories:	Ceramic; Oxide; Silicon Oxide; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	Chemically treated powdered grade. Wollastonite is a naturally occurring white mineral with an acicular (needle-shaped) particle structure. This distinctive particle morphology makes wollastonite an ideal performance mineral for a broad range of industrial and consumer applications, including polymer reinforcement; coatings; construction/architecture reinforcement; enhancing friction stability in discs, lings, and brakes; and metallurgy. .Information provided by NYCO Minerals, subsequently acquired by Imerys.
Key Words:	Calcium Metasilicate, CaSiO₃, CaSiO3
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Original Value	Comments

Bulk Density	0.700 g/cc	Loose
	1.10 g/cc	Tapped
Density	181 lb/ft³
Brightness	92 %	G.E. Brightness
Oil Absorption	22 %
Fineness	4.0	Hegman
Solubility in Water	0.0095 %
Moisture Absorption	0.0500 %
Particle Size	>= 2.0 µm	10% smaller than
	8.0 µm	median; Microtrac
	<= 23 µm	90% smaller than
pH	9.9	10% Slurry
Specific Surface Area	1.8 m²/g	BET
Molecular Weight	116 g/mol

Mechanical Properties	Original Value	Comments
Hardness, Mohs	4.5
Tensile Strength	2700 - 4100 MPa @Diameter 0.00300 - 0.150 mm	Fiber Strength
Modulus of Elasticity	303 - 530 GPa @Diameter 0.00300 - 0.150 mm	Fiber Modulus

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.30e+13 ohm-cm	pure wollastonite
Dielectric Constant	6.8 @Frequency 10000 Hz
	6.8 @Frequency 100000 Hz
	6.9 @Frequency 1e+6 Hz
	6.9 @Frequency 1000 Hz
Dissipation Factor	0.00152 @Frequency 1000 Hz
	0.0046 @Frequency 10000 Hz
	0.0046 @Frequency 1e+6 Hz
	0.0078 @Frequency 100000 Hz

Thermal Properties	Original Value	Comments
CTE, linear	6.50 µm/m-°C
Thermal Conductivity	2.63 - 2.77 W/m-K
Melting Point	1410 °C	ASTM D1857
	1540 °C	theoretical

Optical Properties	Original Value	Comments
Refractive Index	1.63

Component Elements Properties	Original Value	Comments
Al2O3	0.40 %
CaO	46.36 %
Fe2O3	0.77 %
K2O	0.020 %
Loss on Ignition(%)	0.50 %
MgO	0.15 %
MnO	0.15 %
SiO2	51.6 %
TiO2	0.050 %

Descriptive Properties
Aspect Ratio (L/D)	3:1
Bulking Value (gal./lbs.)	0.0413
Color	White
Minus 400 U.S. Mesh Screen (%)	99
Morphology	Acicular

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

Users viewing this material also viewed the following:
Imerys 10 WOLLASTOCOAT® Wollastonite
Imerys NYAD® 1250 Wollastonite
Imerys NYAD® 325 Wollastonite
Imerys NYCOR® 100 Wollastonite
Diamond, Natural

CNYCO09 / 1691

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message