Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Predicting final stage sintering grain growth affected by porosity   Grain growth has a definitive impact on the quality of transparent sintered
materials in areas such as ballistics, biomaterials, jewelry, etc. Controlling
the sintering trajectory at the precise moment of final stage sintering is one
of the main sintering challenges for obtaining highperformance, fully-dense
nano-ceramics. However, the final stage of sintering involves a very complex
coupling between the rate of porosity elimination/grain growth and transition
mechanisms. This complexity makes predicting the sintering trajectory very
difficult, and most transparent material production escapes this problem by
using expensive high-pressure methods such as hot isostatic pressing (HIP). In
the quest for a pressureless transparent material process, this paper addresses
the challenge of predicting grain growth in the transition domain from the
grain growth onset (in a high porosity region) to full density for MgAl 2 O 4
spinel. We present a comprehensive modeling approach linking theoretical models
such as Zhao \& Harmer's and Olevsky's equations to accurately predict the
complex grain growth transition region of final stage sintering. This modeling
approach opens up the possibility for numerical exploration of microstructure
development via underlying kinetics experimental identification.

31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics