Tao Qiu, Meihua Liu, Tangbangguo Zhou, 等. Research on controllable ozone oxidation on diamond surface[J]. Functional Diamond, 2022,2(1):84-93.
Tao Qiu, Meihua Liu, Tangbangguo Zhou, et al. Research on controllable ozone oxidation on diamond surface[J]. Functional Diamond2022, 2(1): 84-93.
Tao Qiu, Meihua Liu, Tangbangguo Zhou, 等. Research on controllable ozone oxidation on diamond surface[J]. Functional Diamond, 2022,2(1):84-93. DOI: 10.1080/26941112.2022.2098064.
Tao Qiu, Meihua Liu, Tangbangguo Zhou, et al. Research on controllable ozone oxidation on diamond surface[J]. Functional Diamond2022, 2(1): 84-93. DOI: 10.1080/26941112.2022.2098064.
Research on controllable ozone oxidation on diamond surface
摘要
Abstract
In recent years
there have been more and more researches on the surface modification of diamonds
however
the exact types and quantities of oxygen-related species on diamond surfaces and the method to control the condition parameters to obtain as many oxygen-containing groups as possible have been rarely studied so far. Therefore
in this work
we focused on these questions. And we find out that ozone oxidation would not affect the overall crystal structure and morphology of diamonds. Besides
changing oxidation time and ozone concentration would significantly influence the density of hydroxyl groups
which is manifested as a change of oxygen content. In order to make the hydroxyl density on diamond surface reach a high level (3.12 × 10
14
units/cm
2
)
so that diamonds can be better combined with the resin matrix
the ozone oxidation time should be 15 min
and the ozone concentration should be 115 g•m
−3
. And under these conditions
the thermal conductivity of diamond and polysiloxane composites can reach 8.02 W/mK.
关键词
Keywords
references
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