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           Figure 4. Standardized main effect of control factors on feasibility, flexural strength, and shrinkage.

































           Figure 5. Comparison diagram of proposal feasibility as a function of holding temperature and holding time.

           area was highlighted by high densification and excess of   time  were  of  high  densification  and  grain  size  and
           deformation due to a decrease in viscosity. In addition,   were bigger than the grain in material produced at low
           this reduction indicated mold infiltration and subsequent   temperatures. This situation is shown in Figure 6, where
           incrustation  of  collapsed  mold  on  object  surface.  The   the comparison of material densification and grain size is
           materials obtained at high temperature with long holding   presented.

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