Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: In-situ synchrotron microtomography reveals multiple reaction pathways
  during soda-lime glass synthesis   Ultrafast synchrotron microtomography has been used to study in-situ and in
real time the initial stages of silicate glass melt formation from crystalline
granular raw materials. Significant and unexpected rearrangements of grains
occur below the nominal eutectic temperature, and several drastically different
solid-state reactions are observed to take place at different types of
intergranular contacts. These reactions have a profound influence on the
formation and the composition of the liquids produced, and control the
formation of defects.

27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga