z-logo
Premium
Formation of carbides and hydrocarbons in chondritic interplanetary dust particles: A laboratory study
Author(s) -
LLORCA JORDI,
CASANOVA IGNASI
Publication year - 1998
Publication title -
meteoritics and planetary science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.09
H-Index - 100
eISSN - 1945-5100
pISSN - 1086-9379
DOI - 10.1111/j.1945-5100.1998.tb01629.x
Subject(s) - kamacite , interplanetary dust cloud , chondrite , carbide , formation and evolution of the solar system , carbon fibers , hydrocarbon , particle (ecology) , silicon carbide , materials science , astrobiology , analytical chemistry (journal) , chemistry , solar system , meteorite , metallurgy , geology , physics , composite material , environmental chemistry , composite number , organic chemistry , oceanography
— The reaction between kamacite grains and H 2 + CO gas mixture has been tested in the laboratory under experimental conditions presumed for interplanetary dust particle (IDP) formation in a nebular‐type environment (H 2 :CO = 250:1; 5 × 10 −4 atm total pressure, and 473 K). Carbon deposition, hydrocarbon production in the C 1 –C 4 range, and the formation of an ɛ‐carbide phase occur when well‐defined model FeNi bcc alloy (kamacite) particles are exposed to a mixture of H 2 + CO during 10 3 h. These results strongly support the idea that gas‐solid reactions in the solar nebula during CO hydrogenation represent a plausible scenario for the formation of carbides and carbonaceous materials in IDPs, as well as for the production of hydrocarbons through Fischer‐Tropsch‐type reactions.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here