A Novel Approach to the Sintering Schedule of Ba (Co0.7Zn0.3)1/3Nb2/3O3 Dielectric Ceramics for Microwave Applications

Table 1

Sintering and annealing parameters of BCZN ceramics. Larger grain sizes are extracted from bulk samples (Figures 5(a) and 5(b)).

Sample	Sintering parameters at 1450°C					Sample	Heating parameters at 1300°C
	Insertion time (min)	Dwell time (min)	Extraction time (min)	Sintering process time (min)	Larger grain size (μm)		Heating rate (°C/h)	Dwell time (h)	Cooling rate (°C/h)	Larger grain size (μm)
x1s	5	0	5	10	∼2	x1a	200	30	200	∼2
x2s	5	10	5	20	∼4	x2a				∼5
x3s	10	10	10	30	∼5	x3a				∼6
x4s	100	30	100	230	∼7	x4a				∼9
x5s	100	60	100	260	∼10	x5a				∼10