Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Accommodation of Tin in Tetragonal ZrO2   Atomic scale computer simulations using density functional theory were used
to investigate the behaviour of tin in the tetragonal phase oxide layer on
Zr-based alloys. The $Sn_{Zr}^{\times}$ site defect was shown to be dominant
across most oxygen partial pressures, with $Sn_{Zr}^{"}$ charge compensated by
fully charged oxygen vacancies occurring at partial pressures below $10^{-31}$
atm. Insertion of additional positive charge into the system was shown to
significantly increase the critical partial pressure at which $Sn_{Zr}^{"}$ is
stable. Recently developed low-Sn nuclear fuel cladding alloys have
demonstrated an improved corrosion resistance and a delayed transition compared
to Sn-containing alloys, such as Zircaloy-4. The interaction between the
positive charge and the tin defect is discussed in the context of alloying
additions, such as niobium and their influence on corrosion of cladding alloys.

28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph