Abstract
The importance of iron oxide has to be emphasized greatly as the materials of ferrites. There are many ways of manufacturing process in making iron oxide.
This study is mainly aimed at solid reaction of ferrites which are made from various kinds of iron oxide processed from different manufacturing procedures.
The results showed that wet method, especially in goethite, is faster in solid reaction than dry method which is usually employed. This is caused by the particle size as well as diffusibility. We believe that iron oxide processed by wet method or day method will differ a great deal in magnetic characters.
