Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electrical conductivity characterized at varying strains in spiral cut
  high-pressure torsion discs   High-pressure torsion (HPT) imparts inhomogeneous strain to process discs
with low strain in the center and higher strain at the outer edge. Microscopy
and microhardness indentation have been used to characterize and correlate this
inhomogeneity with strain, but similar exploration with other properties has
been uncommon. In this work, the electrical conductivity of pure copper discs
processed by HPT was characterized with respect to equivalent strain by cutting
them into spirals with an incremental, monotonic increase in strain. Electrical
conductivity varied with straining in agreement with the literature and
expectations based on grain boundary evolution. The spiral conductivity testing
method outlined in this work can improve characterization of HPT materials in
future studies.

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The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an