1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Diffusion in alumina
Rent:
Rent this article for
USD
10.1063/1.2393012
/content/aip/journal/jap/100/10/10.1063/1.2393012
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/10/10.1063/1.2393012

Figures

Image of FIG. 1.
FIG. 1.

Log diffusion coefficients as a function of reciprocal temperature for diffusion in alumina ◻. Hydrogen (Ref. 1); 엯 water (Ref. 9); water (Ref. 10). Lines, least-square fits.

Image of FIG. 2.
FIG. 2.

Profile of chromium that diffused into an alumina bicrystal after at . From Ref. 16, Fig. 1. Points, experimental data, vs , is the distance from the surface.

Image of FIG. 3.
FIG. 3.

Profile of chromium that diffused into an alumina bicrystal after at . From Ref. 16, Fig. 1. (Data from Fig. 2). Points, experimental data, solid line proportional to concentration, dashed line, constant with chromium concentrations [Eq. (5)].

Image of FIG. 4.
FIG. 4.

Experimental data for volume diffusion of oxygen in alumina. (엯) Refs. 34 and 35; (×) Refs. 36 and 37; Ref. 38; (+) Refs. 32 and 33; (◻) Ref. 39. Lines from least-squares analysis.

Image of FIG. 5.
FIG. 5.

log D vs for selected substances diffusing in alumina. References are in Table VI.

Tables

Generic image for table
Table I.

Classification of diffusing substances in alumina.

Generic image for table
Table II.

(A) Volume diffusion of impurities in alumina. (B) volume diffusion of impurities in polycrystalline Lucalox alumina. The value in perenthese denotes a long extrapolation.

Generic image for table
Table III.

Volume diffusion of oxygen and aluminum in alumina.

Generic image for table
Table IV.

Effects of impurities added to alumina on the diffusion coefficients of oxygen, as compared to undoped material.

Generic image for table
Table V.

Diffusion coefficients calculated from deep penetration tails on diffusion profiles in alumina. In sapphire (single crystals) the diffusion is presumed to be along dislocations, where in polycrystalline material along grain boundaries.

Generic image for table
Table VI.

References for Fig. 5.

Loading

Article metrics loading...

/content/aip/journal/jap/100/10/10.1063/1.2393012
2006-11-30
2014-04-16
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Diffusion in alumina
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/10/10.1063/1.2393012
10.1063/1.2393012
SEARCH_EXPAND_ITEM