Metal titanates for friction stabilization of friction materials
AssigneeAlliedSignal Inc.
InventorsSunil Kesavan, Gerhard Burmester
Life of this patent
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Abstract
Alkali and alkali earth metal titanates used for friction stabilization of friction materials such as, but not limited to, disk brake pads, brake drum linings, clutch disks, and other friction applications are described. Examples of suitable alkali and alkali earth metal titanates include, without limitation, potassium titanate, sodium titanate, and calcium titanate. Preferably, the alkali or alkali earth metal titanates are present in an amount from about 3 volume percent to about 25 volume percent based on the total volume of the friction material matrix.
Claims10
A friction material matrix, comprising:
- at least one alkali metal titanate or alkali earth metal titanate of the general formula M.sub.A TiO.sub.3, where M is selected from the group consisting of alkali metals or alkali earth metals, and A is an integer of 1 or 2;
- and
- at least one binder system, said binder system physically or chemically binding said alkali metal titanate or alkali earth metal titanate.
The friction material matrix of claim I, further comprising any one of the following components:
- at least one reinforcing fiber;
- at least one metal powder;
- at least one lubricant;
- at least one abrasive;
- at least one organic filler;
- and
- at least one inorganic filler.
A friction material matrix, comprising:
- at least one alkali metal titanate or alkali earth metal titanate of the general formula M.sub.A TiO.sub.3, where M is selected from the group consisting of alkali metals or alkali earth metals, and A is an integer of 1 or 2, said alkali metal titanate or alkali earth metal titanate being present in an amount of from about 3 volume percent to about 25 volume percent based on the total volume of the friction material matrix;
- and
- at least one binder system, said binder system physically or chemically binding said alkali metal titanate or alkali earth metal titanate.
An automotive braking element comprising:
- at least one alkali metal titanate or alkali earth metal titanate of the general formula M.sub.A TiO.sub.3, where M is selected from the group consisting of alkali metals or alkali earth metals, and A is an integer of 1 or 2;
- and
- at least one binder system, said binder system physically or chemically binding said alkali metal titanate or alkali earth metal titanate.
Dependencies are inferred from the claim text.