本實驗以原始粒徑94 nm的3 mol%釔穩定氧化鋯為原料並製作成水系漿料以膠鑄成型法生成陶瓷生坯。其中陶瓷粉末的分散劑以低轉速段黏度高低，決定3YTZ最適分散劑為Dolapix CE64。以此作為分散劑可以輕易製作固含量45 %的3YTZ漿料且在剪切速率為1 1/s處，黏度為0.2 Pa.s。後續實驗發現在進行膠鑄成型並加入有機單與聚合起始劑時，漿料有黏度增加的問題。以FTIR發現，當漿料中存在分散劑Dolapix CE64時，其含有的有機官能基會直接減少膠鑄成型滯留時間並失去分散功能，而使黏度增加。但在漿料中加入適當的對苯二酚(HQ)時，可以有效延緩聚合反應的時間並增加注漿的工作時間。而在溫度60℃時，可以使HQ失去阻聚能力並有利於單體聚合而增加生坯強度。
以二階段燒結法可以達到緻密化的同時控制晶粒大小。本實驗先以DIL測量生坯在不同溫度點的瞬時相對密度。當溫度達到1300℃處，相對密度達到83%，表示陶瓷已達到燒結後期並要開始晶粒成長。而實際實驗結果發現在1280℃較為適合作為第一階段燒結溫度。再降低溫度至1180℃持溫0~32小時，發現晶粒成長幅度小並且緻密化至相對密度95%。
但由於燒結體密度仍過低，後續以1200℃持溫32小時、相對密度約97%之燒結體作機械性質量測。其結果為維氏硬度為11.97 GPa，標準差為1.29。破裂韌性為5.41 MPa.m1/2，標準差為0.7。抗彎強度為534 MPa，標準差為88。表示藉由本實驗的製程可以些微改善機械性質但仍可利用熱均壓燒結(HIP)進一步增加相對密度並大大提高3YTZ燒結體機械性質

In this study, 3 mol% yttria-stabilized zirconia(3YTZ) with a primary particle size of 94 nm was used as the raw material to prepare green body by using gel casting process. Dolapix CE64 is a good dispersant for 3YTZ, which can be used to prepare dispersed slurry with high solid content and low viscosity. However, as the dispersed slurry was added organic monomer and polymerization initiator, Dolapix CE64 promoted the gelling, leading to the increase in the slurry viscosity abruptly.
As the dispersant Dolapix CE64 was present in the slurry, its functional group reacted with the monomer, resulting in the decrease of the incubation time of the gelling and the increase in the viscosity. Hydroquinone (HQ) can be used to delay the polymerization and extend the working time of gel casting. As the temperature was raised to above 60 ℃, the polymerization can be promoted and the effect of HQ can be suppressed, leading to increase in the strength of green body.
The two-stage sintering method was used to control the grain growth. Based on the dilatometry results, the first stage sintering temperature was chosen at 1280 ℃, where the relative density reached 83%, indicating that 3YTZ has reached the final stage of sintering. In the second stage sintering, the temperature was lowered to 1200 ° C and soaked for 32 h to inhibit the grain growth and continue the densification to a relative density of 97%. The Vickers hardness of 11.97±1.29 GPa, fracture toughness of 5.41±0.7 MPa.m1/2 and flexural strength of 534±88 MPa can be obtained for the sample prepared by the two stage sintering.

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