The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm

ISSN:
0020-0891
Source:
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
Topics:
Physics
Type of Medium:
Electronic Resource
URL:
_version_ 1798290864730013697
autor Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
autorsonst Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
book_url http://linkinghub.elsevier.com/retrieve/pii/0020-0891(83)90017-9
datenlieferant nat_lic_papers
fussnote Submicronic amorphous carbon particles have been studied in the near-and middle-infrared at room temperature and their properties measured. Two different production methods have been used: (a) arc striking in an argon controlled atmosphere; (b) burning of hydrocarbons in air. TEM analysis allows determination of grain morphology and size distributions. Particle shapes appear to be influenced by different production methods, established by comparing our results with those of samples produced by means of focused laser pulses. Grain dimensions are strongly ambient pressure dependent since collisional growth is active in particle formation. All the absorption extinction curves indicate a general λ^-^1 fall-off, with small humps at 8, 11 and 12 μm. A band at about 13 μm is observed only for grains obtained by burning hydrocarbons. Possible temperature effects on the absorption wavelength dependence have been noted by comparing our observations with those of commercial lamp-black performed at liquid helium temperature.
hauptsatz hsatz_simple
identnr NLZ178754676
issn 0020-0891
journal_name Infrared Physics
materialart 1
package_name Elsevier
publikationsort Amsterdam
publisher Elsevier
reference 23 (1983), S. 85-92
search_space articles
shingle_author_1 Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
shingle_author_2 Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
shingle_author_3 Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
shingle_author_4 Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
shingle_catch_all_1 Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
0020-0891
00200891
Elsevier
shingle_catch_all_2 Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
0020-0891
00200891
Elsevier
shingle_catch_all_3 Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
0020-0891
00200891
Elsevier
shingle_catch_all_4 Borghesi, A.
Bussoletti, E.
Colangeli, L.
Minafra, A.
Rubini, F.
The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
0020-0891
00200891
Elsevier
shingle_title_1 The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
shingle_title_2 The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
shingle_title_3 The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
shingle_title_4 The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
sigel_instance_filter dkfz
geomar
wilbert
ipn
albert
fhp
source_archive Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
timestamp 2024-05-06T08:23:30.652Z
titel The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
titel_suche The absorption efficiency of submicron amorphous carbon particles between 2.5 and 40 μm
Submicronic amorphous carbon particles have been studied in the near-and middle-infrared at room temperature and their properties measured. Two different production methods have been used: (a) arc striking in an argon controlled atmosphere; (b) burning of hydrocarbons in air. TEM analysis allows determination of grain morphology and size distributions. Particle shapes appear to be influenced by different production methods, established by comparing our results with those of samples produced by means of focused laser pulses. Grain dimensions are strongly ambient pressure dependent since collisional growth is active in particle formation. All the absorption extinction curves indicate a general λ^-^1 fall-off, with small humps at 8, 11 and 12 μm. A band at about 13 μm is observed only for grains obtained by burning hydrocarbons. Possible temperature effects on the absorption wavelength dependence have been noted by comparing our observations with those of commercial lamp-black performed at liquid helium temperature.
topic U
uid nat_lic_papers_NLZ178754676