Machining / Grinding Ferrite Ceramics

CiDRA® Precision Services, LLC has years of experience manufacturing micron level tolerance products from Ferrites Ceramics. We leverage our in-depth dicing, drilling, milling, grinding, and polishing capability to manufacture the highest quality Ferrite products.

Whether you need prototypes or volume production, CiDRA® Precision Services, LLC is here to help. Please contact us to discuss your applications.

About Ferrite Ceramics

Ferrites are dense, homogeneous polycrystalline magnetic materials made by mixing iron oxides with elements of metals such as manganese, zinc, nickel and magnesium carbonates. Compared with other magnetic materials, ferrites can be designed to have high electrical resistivity and low eddy current losses over a wide frequency range. Ferrite materials are typically manufactured using sintering ceramic processes. Often times, the sintering process occurs in an oxygen deficient environment and/or under magnetic field. The magnetic properties of ferrites vary considerably with the specific formulation and manufacturing conditions. See material suppliers for details.

Ferrite Applications

  • Delay lines
  • Gas bearings for guidance systems
  • Missile safing systems
  • Proximity detectors
  • Stators and rotors
  • Suspension rotors
  • Switched power supplies
  • Wide band transformers

Ferrite Properties

 

Units

Mn-Zn Ferrite

Ni-Zn Ferrite
Max Use Temperature (No Load) C
Thermal Shock (quenching) C
Thermal Conductivity W/(m K) 3.5 to 4.2 6.3
Specific Heat  J/(K kg) 1046 -1100 712
Coefficient of Thermal Expansion 1/C (x10e-6) 8 to 10.5 8
Color Dark Grey
Moh Hardness 6
Vickers Hardness kg/mm^2 550
Knoop Hardness kg/mm^2 600 - 650 700
Density g/cm^3 4.5 - 4.9 4.5 - 5
Porosity % of nominal
Compressive Strength Mpa 414 - 442 2000
Tensile Strength Mpa 48 41 - 100
Flexural Strength MPa 120 150
Fracture Toughness MPa m^1/2 1.4 - 1.54 1.36 - 1.42
Young's Modulus GPa 124 122 - 150
Poisson's ratio 0.29
Dielectric Strength kv/cm
Dielectric Constant (@1MHz) 240 - 300 10-13
Dielectric Loss Tangent
Resistivity ohm cm 25 to 10^6 10 to 10^5
The information provided in this table is for room temperature only, and is a compilation of publicly available data.  This information is provided for comparison purposes only, and is not intended to be warrantable.   Further, CiDRA® Precision Services, LLC disclaims any and all liability from errors, inaccuracies, or omissions.

 

Please contact us if you would like to discuss your Ferrite dicing, drilling, milling, grinding, polishing or any other machining applications.