CO OZNACZA SŁOWO POINT DEFECT
Wada krystalograficzna
Krystaliczne ciało stałe wykazuje okresową strukturę krystaliczną. Pozycje atomów lub cząsteczek występują przy powtarzaniu stałych odległości, określanych przez parametry komórki jednostkowej. Jednakże układ atomów lub cząsteczek w większości krystalicznych materiałów nie jest doskonały. Regularne wzorce są przerywane przez defekty krystalograficzne.
Definicja słowa point defect w słowniku
Definicja punktu defektu w słowniku to niedoskonałość w krysztale, charakteryzująca się jedną niezajętą siatką lub jednym śródmiąższowym atomem, cząsteczką lub jonem.
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Point. Defects. What is a point defect? What is the “effective charge” on a defect?
What is an antisite defect? 1.1 INTRODUCTION Defects play an important part in
both the chemical and physical behavior of solids, and much of modern science ...
Richard J. D. Tilley,
2008
2
Defects and
Defect Processes in Nonmetallic Solids
Acclaimed by Nature as "an ideal text," this extensive survey provides coverage of defects in nonmetals, emphasizing point defects and point-defect processes.
W. Hayes, A. M. Stoneham,
2012
3
The Physics of Semiconductors: An Introduction Including ...
At thermodynamical equilibrium a (point) defect density ∝ exp ( −GfD/kT ) will
always be present (cf. Sect. 4.2.2). Point defects (Sect. 4.2) are deviations from
the ideal structure involving essentially only one lattice point. The formation
energy ...
4
Point Defects in Semiconductors and Insulators: ...
An obvious meaning of the word structure is the atomic configuration of a point
defect. Generally, a point defect is a defect with "zero dimension" on a
macroscopic scale, in contrast to defects with "one dimension", such as
dislocations, or "two ...
Johann-Martin Spaeth, Harald Overhof,
2003
5
Proceedings of the Third International Symposium on Defects ...
POINT DEFECT GENERATION BY THE STRESS DUE TO IMPURITY DOPING IN
SILICON CRYSTAL Michimasa Kflcuchi, Katsuto Tanahashi and Naohisa Inoue
Research Institute for Advanced Science and Technology, Osaka Prefecture ...
6
Introduction to Liquid Crystals: Chemistry and Physics
In the nematic phase, the alignment of the molecules can often converge to a
point (a point defect). The molecules can align in this manner in a number of
different ways; some of these alignments are shown in Figure 9.4 (a-d). In the first
case ...
Peter J. Collings, Michael Hird,
1997
7
Effects of Radiation on Materials: 15th International Symposium
The rate equations for the point-defect concentrations and the creep rate due to
the climb-enabled glide mechanism were numerically integrated to obtain values
for irradiation creep as a function of dose and temperature. Before turning to the ...
Roger E. Stoller, Arvind S. Kumar, D. S. Gelles,
1992
8
Crystallography and Crystal Defects
A point defect differs from a dislocation and from a two-dimensional defect such
as a crystal boundary in two important respects. The first is that it is difficult to
observe directly, so that in the main it can be detected and studied only through
its ...
A. Kelly, G. W. Groves, P. Kidd,
2000
9
An Introduction to Mineral Sciences
Another possible type of point defect occurs when an atom moves from a site,
leaving a vacancy, and is placed in an alternative interstitial site which is
normally unoccupied. This is a Frenkel defect and again leaves the overall
charge balance ...
10
Dislocations in Solids
Simulating the point defect by an array of point forces reveals the form of the
lattice contribution arising from the discrete atomic arrangement around the
defect. While this term is unimportant at large distances from the dislocation, it
becomes ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «POINT DEFECT»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
point defect w wiadomościach.
Researchers find nanowires have unusually pronounced 'anelastic …
We model this behaviour through a theoretical framework by point defect diffusion under high initial strain gradient and short diffusion distance, ... «Nanotechnology News, Lip 15»
WASPS Poised to Bring Tunable Sources for Quantum …
A view inside a WASPS single-photon source: A diamond nanocrystal containing a single fluorescent point defect is situated in a miniature optical resonator so ... «Photonics.com, Kwi 15»
What Liverpool FC and Brendan Rodgers must think about over …
And Brendan Rodgers can only hope his Liverpool side can return fresh, ready to peg back the five-point defect to Manchester United in the ... «Liverpool Echo, Mar 15»
End-point control for laser welding
The end-point defect is also undesirable in welding applications in the aerospace industry. This defect can act as potential stress riser point, ... «Industrial Laser Solutions Magazine, Mar 15»
A Tie Offers Plenty Of Questions For Paris Saint-Germain
This match is also a reflection of their lack of urgency; Paris could have capitalized on their 2 point defect behind Lyon with a win, but showed ... «We Are Hooligans, Mar 15»
Dez Bryant's big night headlines Week 15's awards
Bryant's three touchdown grabs took the air out of an energized Eagles team that came back from an early 21-point defect and exposed some ... «NFL.com, Gru 14»
Game Recap: Cleveland Cavaliers defeat Milwaukee Bucks 111-108
After the insertion of Miller into the lineup in the fourth quarter, the Cavs turned an 11-point Bucks lead into a two-point defect in just over a ... «Fear the Sword, Gru 14»
Learn What Makes the Asylum Research AFM Different from All …
The high stability of Cypher AFMs allows point defect resolution to continue from scan to scan for several hours. This can be observed in Figure ... «Azom.com, Lis 14»
Grizzlies Vs Thunder Preview: I Hear Thunder But There's No Rain
A 20 point defect is effective communication. No media interviews needed. The Cast. Mike Conley will not have Westbrook to worry about on ... «Beale Street Bears, Lis 14»
Syracuse point guard Kaleb Joseph shows poise, moxie in …
The game was reminiscent of SU's matchup with Carleton in 2013, when the Orange overcame a 15-point defect and needed to rally to force ... «The Juice Online, Lis 14»