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US 2007/0184179 A1Published application
Methods and apparatus to monitor a process of depositing a constituent of a multi-constituent gas during production of a composite brake disc
OwnerAkshay Waghray, David Parker +2inventors
InventorsAkshay Waghray, David Parker, Douglas Steinke, David Linville
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Abstract
Methods and apparatus to monitor a process of depositing a constituent of a multi-constituent gas are disclosed. The methods and apparatus may be used in a process for producing a carbon-carbon composite brake disc.
Claims20
A method to monitor a process of depositing a constituent of a multi-constituent gas, the method comprising:
- placing a porous material in a reactor having an outlet;
- transmitting a multi-constituent gas to the reactor, wherein at least one constituent of the multi-constituent gas is deposited on the porous material to increase the density of the porous material;
- monitoring, during the deposition of the at least one constituent, the multi-constituent gas in the outlet of the reactor to determine periodically the concentration of at least one remaining constituent of the multi-constituent gas;
- determining, without removing the material from the reactor, when the material has attained a desired density based on a rate of change in the concentration of the at least one remaining constituent;
- and
- terminating the process of depositing the at least one constituent of the multi-constituent gas in response to determining the material has attained the desired density.
3 more elements
Apparatus to monitor a process of depositing a constituent of a multi-constituent gas, comprising:
- a reactor having an inlet and an outlet, wherein the reactor is configured to deposit at least one constituent of a multi-constituent gas on a porous material within the reactor;
- a monitor to determine during the deposition of the at least one constituent the concentration of at least one remaining constituent of the multi-constituent gas;
- and
- a processing unit coupled to the monitor and configured to determine, without removing the material from the reactor, when the material has attained a desired density based on a rate of change in the concentration of the at least one remaining constituent.
1 more element
Dependencies are inferred from the claim text.