Quartz, also known as SiO2, has a tetrahedral structure that is similar to FePO4 under normal circumstances. However, there is the presence of a few differences. For FePO4, it’s a cation is a transition metal, unlike silicon which is a metalloid. This study summarises the changes in structure of FePO4 over a range of temperatures. Quartz belong to the trigonal crystal system, but not considered to be part of the rhombohedral lattice system. Both α- quartz and β-quartz are chiral crystal structures with the tetrahedral only turned slightly, and the structure and linkage are largely the same. Meanwhile, FePO4 does not exhibit similar reactions as compared to other quartz examples. FePO4, also known as Iron (III)
Phosphate is commonly …show more content…
As an electrode, FePO4, is generally stable and can used with durability for long periods of time. Other polymorphs of FePO4 can be observed as well. Polymorphism refers to the ability of a mineral to have more than one structure, for differing reasons. However, it is unknown whether FePO4 can exist as a cristobalite like Quartz itself. The α-β transition of FePO4 occurs at a certain degrees of separation, mainly between the angles of 136 and
22 degrees. As a transition metal, the iron exhibits numerous unique qualities, making
FePO4 not exactly a quartz. It is one of the most common elements and there are four different stable isotopes, meaning that the mass of α-quartz structure FePO4 might have a higher tolerance to condition changes compared to the β-quartz structure. The linear expansion of the two quartz types produces an instability that causes the iron phosphate to show other kinds of properties which would be analysed in the study and further …show more content…
The second order transition would only begin when the distance between
Fe and O reaches their limit. This makes is different from the SiO2, which have a bridging distance of approximately 10 times lesser. Concurrently, the temperature rising about 980K would result in the difference in symmetry pattern, transitioning from a trigonal structure to a hexagonal structure. The hexagonal lattice can also be called the equilateral triangular lattice. It is another one of the five lattice types, with a wallpaper group of p6m. the Si-O bonds can also be exponentially longer when the values of the expansion are taken and averaged out against time. β-phase shows a much larger intensity of change as compared to the stability shown by the crystal during the previous phase of alpha. Meanwhile, the changes in the Fe-O-P bridges during temperatures below the critical causes the large fluctuations in angle and this allows the crystal’s temperature to be able to increase. It has to be noted that the temperature increased in unpredictable patterns, often showing huge jumps, instead of a linear, straight line fashion. In that case, we can conclude that the symmetrical relationship between the different transition sites and angles are of