Compressive strength

Advanced ceramics have exceptional mechanical properties compared to metals and plastics. Compressive strength is very high for all of the advanced ceramic families, which is the main advantage of these materials.

Description

Compressive strength is the ability of a material to withstand vertically applied pressure forces without sustaining excessive longitudinal or transverse deformation.

In contrast to metals and plastics, ceramics are not very elastic. Their mechanical rigidity differentiates them from these materials, which is generally seen as an advantage for their use in harsh environments. As a result of their very low elasticity, advanced ceramics are particularly able to withstand vertically applied pressure forces.

Expressed in MPa, the values range from 1,500 MPa to over 3,000 MPa according to the ceramics. Sintered silicon nitrides and carbides have the highest values with a minimum of 2,500 MPa.

Application markets

Compressive strength is a property that might be of interest to a wide range of industries where the end user requires a very high value for a specific application.

Comparative table of properties

Comparative table of mechanical properties
Values at ambient temperature – 20°c

Density

(g/cm3)

Resistance to compression

(MPa)

Resistance to bending

(MPa)

Young's modulus

(GPa)

Hardness

(Vickers -GPa)

Mechanical shock resistance (Tenacity)

K(Ic)
Alumina (94 to 99.8 % ) 3.6 to 3.9 1700 to 2500 250 to 350 350-370 12 to 18 4 to 5
Alumina-zirconia composites 4.0 2000 450 350 14 5 to 6
Zirconia MgO 5.5 >1700 550 to 700 170 to 200 11 to 12 6 to 8.5
Zirconia Y-TZP 6.0 2000 to 2500 900 to 1250 200 to 220 12 to 16 10 to 13
Aluminium nitride 3.3 2000 >300 310 - 3
Silicon nitride 3.2 2500 to 3000 650 to 900 300 to 315 15 to 16 7.5 to 8
Silicon carbide 3.1 2500 to 3900 400 to 550 410 24.5 to 28 4 to 4.6
Boron carbide 2.5 >1500 425 440 28 3 to 4

Acceptable: +  ;  Good: ++  ;  Very good: +++.

These values are for information only and do not constitute a contractual obligation.

Raw material
Finished product

Related members:

Route de Noirlac
18 200 Bruere Allichamps
10, rue de Bel Air
49124 Le Plessis Grammoire
12 rue Lirenne
25480 ECOLE VALENTIN
24, route de Joigny
45320 COURTENAY
22, rue de Lamirault Zae de Lamirault-Collegien
77090 Collegien
6, rue des frênes
91160 Ballainvilliers
59, avenue Etienne Billières
31300 Toulouse
20, rue des Champs,
91830 Le Coudray Montceaux
Rue du Lotissement Industriel
65460 BAZET
Z.I. No.1 Rue de l’Industrie
27000 Evreux