the 57th volume of the journal of the american ceramic society on pp 303 to 306 it is to be understood that the disbursement of premanufactured powders is extremely difficult due to the tendency of these small particles to agglomerate such disbursement must overcome the large surface forces that hold the particles together thus it has been found that the best way to produce particles is to generate them at the site by one of the above indicated methods and entrain them in a gas stream and conduct them to the receiver thus minimizing the changes of agglomeration the operating temperature of the receiver 26 is determined by the oxidation rate of the particles carbon is an ideal material because the gas reaction rates for various allotropes of carbon can vary over many orders of magnitude and thus the appropriate temperature can be selected by the use of an appropriate carbon the use of carbon has the additional feature that the combustion product is carbon dioxide it should be emphasized at this point that the mass of particles used is extremely small compared to the amount of fuel burned by a conventional fossil fuel power plant thus the amount of carbon dioxide generated is less than one one hundredth of the production of a fossil fuel plant of the same power particles distributed throughout a volume of gas is a very efficient absorber of sunlight if the particle size and optical constants are chosen properly if the characteristic absorption length of the light passing through the gases comprising.