I Myself Am a Woman: Selected Writings

Pulsed laser synthesis of diamond-type nanoparticles with enhanced Si–C solid solubility and special defects

“…β/α) SiC aggregates with another epitaxial relationship (111) β //(0001) α ; [1 10] β //[101 ¯0] α were also found in terrestrial Kimberlite-type diamond. 71,72 The present PLA synthesis of diamond-type Si-C nanocondensates, with widened solid solubility, paracrystalline distribution of defect clusters, 4×(111) faulting presumably a 4H-type like intergrowth with above epitaxial relationship to the 3C-host, and special grain boundaries due to (hkl)-specific coalescence, along with spherulitic turbostratic graphene, sheds light on more complicated phase behavior of the Si-C-O-H system in natural dynamic settings. It is an open question whether such phase behavior can be extended to Kimberlite-type diamond, 71,72 presolar SiC grains, 20,21 and other extra-terrestrial settings such as that with hexagonal SiC in Canon Diabolo meteorite, 73 submicron diamond and SiC in interstellar space or chondritic meteorites, 74,75 and SiC in the Milky Way or red giant carbon star of Asymptotic Giant Branch undergoing the so-called s-process.…”

Thermal Equation of State of Cubic Silicon Carbide at High Pressures

“…The natural SiC is termed moissanite and it is not a common mineral, although there are rare findings on the Earth. [5][6][7][8][9][10][11][12][13][14] However, SiC may be the dominant phase in the deep interiors of carbon-rich extrasolar terrestrial planets, [15,16] and therefore control the structure and dynamics of these planets. Hence, the high-pressure investigation of SiC is important for planetary science.…”