How does crystallography affect material properties?
Serife Yalcin

Serife Yalcin

Abstract

How does crystallography affect material properties? Serife Yalcin

Statement of the Problem: Developments in science and
technology have required the production of new materials
and design. Knowing the properties of the materials
used to obtain them are helpful to design and manufacture
of materials that we need. Crystallography studies
have been very important for developing of materials because
this studies deal with internal structure, in particular
the symmetry of crystal. The majority of the solid materials
are composed of crystals. This explains how much
important crystallography is in material. The purpose of
this study is to determine suitable materials for material
science need. Methodology & Results: Crystallography is
the science of structure used for characterization of materials
and to determine some physical properties with
microstructure and texture analyses. It includes the general
features of structure and deals with the mapping of
all kinds of systems as geometrical representations. The
same material with different crystallographic parameter
has different properties. It is hardly possible to develop
materials science without crystallographic techniques.
As a sample, we will focus on structure of calcium carbonate.
Calcium carbonate is one of the most abundant
and cheap material found in nature. It can be found in
three forms: Calcite, aragonite and vaterite. XRD pattern
of aragonite, calcite and vaterite shows difference
as seen. These patterns show difference depending on
crystal structure. When Scanning Electron Microscopy
(SEM) image investigate of different forms of calcium carbonate,
it has been observed difference among picture.
Calcite structure shows square structure while aragonite
and vaterite structure show rod and flower type structure,
respectively. Conclusion & Significance: The results have
showed difference depending on the form of calcium
carbonate. Young modulus has been obtained 76, 89-193
Pa for calcite and aragonite, respectively. Preparation of
materials that is needs of human must be in coordination
with crystallography.