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W o r l d C o n g r e s s o n
Materials Science & Engineering
Nano Research & Applications
ISSN: 2471-9838
August 23-25, 2018
Amsterdam, Netherlands
Materials Congress 2018
Page 22
The paper presents, observed by authors, some physical properties and
possible crystallographic structure of the carbon rich (graphite-like) elements
which were found in the high pressure chamber (HPC) fulfilled before gamma
irradiation only by pure gaseous helium under pressure (1 – 3) kbar. A helium
HPC filled up with pure gaseous helium at initial pressure about 1.1 kbar was
irradiated by braking γ-rays of 10 MeV threshold energy during 1.0•105 s at the
electron beam current (22-24) μА. After irradiation, the residual pressure inside
was much lower and equal to 430 bar. Synthesized of macroscopic amount foils
of black color and of 0.22 mm thickness and other multiple objects were found
inside the HeHPC. The element analysis, using scanning electron microscopy
(SEM) and microprobe roentgen analysis (MPRA), allowed us to establish that the
foils consist predominantly of carbon and oxygen and smaller quantities of other
elements (tentative weight % content: 60% C, 30% O, 3% Mg, 2% N, 0.14% Si...).
Two years later some physical properties such as low density (1.20±0.20 g/cm3),
high resistivity (more than E5 micro ohm m), high paramagnetic properties and
medium dielectric relative constant were determined. Mechanical compressive
strength to be of order of 10 MPa was noted. Temperature investigation pointed
out its melting temperature to be no higher than 4000C. A new carbon-reach
structure (graphite–like, with typical carbon graphite planes and with oxygen,
magnesium and so on atoms between) was also postulated based on obtained
diffractometer data (using Siemens D500 powder diffractometer, equipped with
high-resolution Si semiconductor detector). Also the second method for element
content determination (EDX), in principle, has confirmed the previous one. The
theory of observed phenomenon was based on postulated so called transnucleus
phenomenon which took place in dense helium irradiated by proper gamma rays.
Multinuclear reaction in irradiated condensed helium seems to be a new macro,
micro technology.
Biography
Roland Wiśniewski has received his AB degree, in Mechanical
Construction from Warsaw University of Technology (WUT), in
1956. Has started to work at WUT in 1952, has completed his
PhD at the Electronics Faculty of WUT in 1964. He was Deputy
Professor from 1974 and Full Professor from 1983 in Physics
Faculty of WUT, Retired Professor since 2001. He headed a
research group on High Pressure Physics and Technology
(from 1956) and in Nuclear Physics (2000 - 2014) as Professor
at National Center for Nuclear Research (PL), cooperating with
Joint Institute for Nuclear Research (Dubna, RF). He has been
Author (or Co-author) of over 250 published papers in scientific
and technology journals, has 30 applied patents, has presented
in 50 international Conferences and was Supervisor of 9 thesis
(PhD degree). He was awarded by the Cavalier Cross of the
Rebirth of Polish Order, by the National Education Commission
Medal and by others.
New carbon based material obtained by γ
quanta irradiation with threshold energy
of 10MeV of pure gaseous He, under high
pressure, in CuBe2 apparatus, physical
properties and aspects of new nanotechnology
Roland Wisniewski1, Gennady V Mishinsky 2 and
Teresa Wilczynska-Kitowska3
1Warsaw University of Technology, Poland
2Joint Institute for Nuclear Research, Russia
3National Centre for Nuclear Research Otwock-Swierk, Poland
Roland Wisniewski et al., Nano Res Appl 2018, Volume: 4
DOI: 10.21767/2471-9838-C4-016