TW200951094A - Doped sintered product - Google Patents
Doped sintered product Download PDFInfo
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- TW200951094A TW200951094A TW098112527A TW98112527A TW200951094A TW 200951094 A TW200951094 A TW 200951094A TW 098112527 A TW098112527 A TW 098112527A TW 98112527 A TW98112527 A TW 98112527A TW 200951094 A TW200951094 A TW 200951094A
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- oxide
- sintered product
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/481—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates containing silicon, e.g. zircon
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
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- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
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- F27D1/00—Casings; Linings; Walls; Roofs
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Description
200951094 六、發明說明: f發明所屬之技術領域】 ,本發明係關於由錯石製得之新穎燒結材料、—種用於其 製備之方法及其於玻璃熔爐中之用途。 【先前技術】 在耐火產物之中’對熔融及料產物與燒結產物加以區 別。 不同於燒結產物,熔製及洗鑄產物最常包括極其豐富之 晶粒間玻璃相,其將填充結晶晶粒之晶格。因&,燒:產 物及溶製與料產物在其各自應时所遇到之問題以及為 解決該等問題所採用之技術方案通常不同。此外,由於在 製備方法之間存在顯著差異’故針對製備熔製與澆鑄產物 所開發之組合物根據推斷不能夠同樣地用於製備燒結產 物,且反之亦然。 燒結產物係藉由將合適原料混合且接著使此混合物以生 坯狀態成形並在足夠溫度下及在足夠之時間内烘焙所得生 这形式以便達成此生坯形式之燒結來獲得。 燒結產物視其化學組成及製備方法而定預期用於非常多 樣化之行業。 因此,適合於某一特定應用之燒結產物根據推斷將不具 有對於其用於溫度、腐蝕或磨損條件不同的另一應用中所 需之特性。 舉例而言,US 3,899,341描述由鍅石(50-90%)及由氧化 錄精製之燒結產物。使氧化錘部分穩定以便限制會導致裂 139781.doc 200951094 然而,US 3,899,341之產物被設計 因此’其根據推斷不適用於與熔融 在燒結產物之中,由誥石(矽酸錐· &〇2 si〇2,或
ZrSiOO及(視情況)氧化鍅(游離氧化鍅Zr〇2)精製之緻密產 物可用於尤其在非鹼性玻璃之情況下其與熔融玻璃直接接 觸之應用中。
EP 952 125因此描述預期用於玻璃熔爐且由锆石(5_4〇%) 及由氧化鍅精製之燒結產物。此等產物另外含有氧化鈦、 氧化鋁及氧化釔,利用該等氧化物可在無任何裂痕之情況 下精製得到大塊塊體。此等產物之Si〇2含量低於14%。其 Zr02含量大於82%。 WO 02/44102描述用於製造玻璃板之隔離管(is〇pipe)。 隔離管包括超過95質量%之鍅石且除非其還包括〇2%與 0.4%之間的氧化鈦,否則展現不足之蠕變特性。為了說明
痕之產物之彈性形變。 為與熔融鋼接觸使用。 玻璃接觸使用。 技術現狀,WO 02/44102列舉US 5,124,287。 US 5,124,287描述含有75至95%锆石及氧化锆、預期與 熔融玻璃接觸之組合物。其指出氧化鈦之存在有利於使所 付產物在燒結之後緻密化。在最終產物中,氧化鍅應未經 穩定’且因此較佳在起始混合物中使用未經穩定之氡化 錯。然而,經(例如)氧化锆穩定劑(諸如氧化釔或氧化每) 穩疋之氧化錐的使用並非「贬值」(redhibitory),對混合 物加熱可導致氧化錘失穩。 W0 2006/073841描述預期用於玻璃行業之耐火材料。基 139781.doc 200951094 於锆石之此等材料可包括γ2ο3。其總是包括至少1% P205 或 V205。 SU 1 020 404描述預期用於塗佈基於鍅石之耐火產物的 混合物。 新型玻璃(諸如無鹼玻璃)之外觀需要使玻璃之熔融及/或 成形溫度增加。因此,對於基於銼石之傳統材料可見其效 能降低。實際上,基於锆石之傳統材料在使其經受高於 1,550°C之溫度時傾向於流出。由於溫度及在此等溫度下之 暴露時間增加,故流出更加顯著。此現象由於其可隨後伴 隨在玻璃中形成缺陷、玻璃之腐蝕增加且伴隨起泡現象而 特別具有破壞性。 因此,對具有非常良好之流出抗性且可用於玻璃熔爐中 之產物存在需要。本發明旨在滿足此需要。 【發明内容】 為此,本發明提出一種由始料精製之燒結產物,該始料 含有75-99%锆石(以基於始料之質量百分比計)且具有以下 平均重量化學組成(以基於氧化物之質量百分比計): 60%<Zr〇2<72.8% ; 27%<Si02<36% ; 0· 1 %$B2〇3 + Ge〇2+P2〇5 + Sb2〇3+Nb2〇5+Ta2〇5+V2〇5 ; 0.1%<ZnO+PbO + CdO ; B2〇3 + Ge〇2+P2〇5 + Sb2〇3+Nb2〇5+Ta2〇5+V2〇5+ZnO+PbO+
CdO<5% ; 0 %<Al2〇3+Ti〇2+MgO+Fe2〇3+NiO+Mn〇2+CoO+CuO<5% ϊ 139781.doc 200951094 其他氧化物:^1.5%, 總計100%。 此燒結耐火產物尤其相對於迄今描述之產物而言具有極 佳之流出抗性。其亦有利地具有等於或高於已測試之已知 產物的高密度^ 本發明之產物較佳進一步具有以下可選特徵中之一或多 者: -Ta205含量大於〇·3% ’較佳大於〇 5%,更佳大於〇 8%(以 基於氧化物之質量百分比計)。 _ TazO5含量小於3% ’較佳小於2.5% ’更佳小於2%(以基 於氧化物之質量百分比計)。 -0WGeO2+P2〇5+Nb2O5+Ta2O5 ’ 及/或 〇·1°/6ΖηΟ,及/或
Ge02+P2〇5+Nb205+Ta205+Zn〇S5%,及/或 0%<Al2〇3+Ti〇2+MgO+Fe2〇3+NiO+MnO2+CoO+CuO<5% (以基於氧化物之質量百分比計)。 -ZnO含量大於〇.3% ’較佳大於〇 5%,更佳大於〇.8%(以 基於氧化物之質量百分比計)。 _ ZnO含量小於3%,較佳小於2 5%,更佳小於2%(以基於 氧化物之質量百分比計)。 -本發明之產物包括來自Al2〇3、Ti〇2、MgO、Fe2〇3、 NiO、Mn02、CoO及CuO之至少一種氧化物,且較佳包 括其中之至少兩種氧化物。較佳地,該等氧化物中之至 少一者或甚至該等氧化物中之至少兩者中之每—者的含 139781.doc 200951094 量大於0.05%,較佳大於0.10%,更佳大於0.15%,更佳 大於0.3%(以基於氧化物之質量百分比計)。較佳為: 0.05%<A1203+Ti02,較佳為 0.9%<Al2O3+TiO2,更佳為 1%<A1203+Ti02。亦較佳為:Al203+Ti02<3%,較佳為 Al203+Ti02<2%(以基於氧化物之質量百分比計)。 -該產物具有以下平均重量化學組成(以基於氧化物之質 量百分比計): 60%<Zr〇2<72.4% ; 27%<Si02<36% ; 0.2%<B2〇3+Nb2〇5+Ta2〇5<2.5% ; 0.2%<ZnO<2.5°/〇 ; 0.2%<Al2〇3+Ti〇2+MgO+NiO+MnO2+CoO+CuO<3% ; 其他氧化物:^1.5% ’ 總計100%。 -該產物具有以下平均重量化學組成(以基於氧化物之質 量百分比計): 60%<Zr〇2<72.4% ; 27%<Si02<36% ; 0.2%<Nb2〇5+Ta2〇5<2.5% ; 0.2%<ZnO<2.5°/〇 ; 0.2%<A1203+Ti〇2<2°/〇 ; 其他氧化物:Si.5% ’ 總計100%。 -「其他氧化物」為雜質。較佳為:「其他氧化物」之含 139781.doc 200951094 量小於1.2% ’較佳小於丨%,更佳小於〇 7%,較佳小於 0.5%且更佳小於〇.2〇/。(以基於氧化物之質量百分比計)。 -P2〇5含量小於1°/。’較佳小於〇.5%。 -氧化釔Y2〇3含量小於05%,較佳小於〇3%(以基於氧化 物之質量百分比計)。
-該始料中之锆石含量小於或等於8〇%(以基於始料之 百分比計)。 I _該產物中之氧化鍅含量大於5%,較佳大於1〇%,且/或 小於15 %(以基於氧化物之質量百分比計)。 _ 90數目%以上或甚至實質上1〇〇數目%之晶粒具有小於咒 微米、較佳小於30微米、較佳小於2〇微米、甚至較佳小 於10微米之粒徑。 -孩產物之表觀孔隙度小於5 %,較佳小於2%,較佳小於 1 %,較佳小於〇 5 %。 -該產物具有大於4.0 g/cm3、較佳大於4J g/cm3、較佳大 於4.2 g/cm3之表觀密度。 該產物具有塊體形狀,該塊體較佳具有大於5 較佳 大於10 kg之質量。 本發明亦係關於一種用於製備燒結產物之方法,該方法 包括以下步驟: a) 將原料混合以形成始料; b) 由該始料成形生坯部分; 0燒結該生坯部分以獲得該燒結產物, 值得注意的是測定該始料以使該產物符合本發明。 139781.doc 200951094 本發明之方法較佳可進一步具有以下可選特徵中之一或 多者: -在步驟a)中,以使得全部鍅石與氧化鍅之含量占始料之 至少95%(以基於始料之質量百分比計)的量添加锆石及 視情況氧化錯。 -以確保步驟c)中所獲得之燒結產物符合本發明之量自動 地(亦即系統性地且有條理地)添加氧化物Al2〇3、Ti〇2、
MgO、Fe2〇3、NiO、Mn02、CoO、CuO、B2〇3、
Ge02、p2〇5、Sb2〇3、Nb2〇5、Ta2〇5、v2〇5、pb〇、Zn〇 及CdO中之一或多者。 -至少50質量。/。、較佳至少8〇質量%、較佳至少9〇質量 %、更佳實質上100質量%之鋅係以氧化物Zn〇形式來添 加0 -磷酸含量小於1 % ’較佳小於0 8%,甚至較佳小於 0.5% 〇 -步驟a)中所用中之原料具有小於5〇 μηι或甚至小於μιη 或甚至小於20 μιη或甚至小於5 μιη或甚至小於4 μιη之中 值粒徑(D5(〇。 本發明亦係關於根據本發明之方法製得或能夠根據本發 明之方法製得的本發明之耐火產物於玻璃熔爐中、尤其在 與熔融玻璃接觸之熔爐區域中的用途。本發明亦係關於此 類玻璃熔爐。 定義 在本說明書中且依照慣例’在始料中或在產物中,不與 139781.doc 200951094
Si〇2分子締合形成鍅石的Zr02分子被稱為「氧化锆」。同 樣地,不與Zr〇2分子締合形成锆石的Si02分子被稱為二氧 化矽。本發明之產物的Zr〇2含量對應於锆石之Zr〇2含量且 對應於氧化鍅。本發明之產物的Si〇2含量對應於锆石之 Si〇2含量且對應於二氧化矽。 在化學組成中,氧化物含量係關於根據工業慣例以最穩 定之氧化物形式表示的相應化學元素中之每一者的總含 量;因此包括上述元素之次氧化物以及(視情況)氮化物、 氧II化物' 碳化物、氧碳化物、碳氮化物或甚至金屬物 質。 在用於定義產物之化學組成的氧化物Al2〇3、Ti〇2、
MgO、Fe203、NiO、Mn02、CoO、CuO、B2〇3、Ge02、 P2O5、Sb203、Nb205、Ta205、V205、PbO、ZnO 及 CdO 之 質量含量總和中,所提及之氧化物中之一或多者可不存 在。 含有氧化鍅Zr02之原料亦含有少量Hf02(1.5%-2%)。 「zr〇2」習知指定氧化锆Zr02及與Zr02—起引入之此等痕 量 Hf〇2。 除非另外指出,否則所有百分比為基於氡化物之質量百 分比。詳言之’在始料中’锆石百分比係基於始料之總質 量來表示。 「雜質」意謂不可避免之成分,其必然會被引入原料中 或由與該等成分之反應產生。在一特定實施例中,?2〇5為 雜質。 139781.doc 200951094 ”且粒子之中值粒徑」D5〇為使該組粒子分成質量上 相等之第-群與第二群且該等第—群與第二群僅包括粒徑 分別大於或小於該中值粒徑之粒子的粒徑。 晶粒之粒徑為其於拋光切片中觀測到之較大尺寸。 【實施方式】 鍅石可由錯砂或由具有強錘石含量之緻密產物之燒粉提 供。 根據本發明,始料包括至少75%、較佳至少8〇%之鍅石 絕對必要。若由本發明之鍅石引入的以〇2與心〇2之量以二 氧化矽及氧化錯形式來提供,則實際上將不能獲得本發明 之產物的有利特性。 錐石與氧化錯含量之總和較佳占始料之至少95%。 氧化锆由於其在高溫下之結晶態轉移而具有明顯之膨脹 變化。為了限制此等膨脹變化(尤其針對大塊體而言),需 要限制氧化鍅含量》始料因此應含有少於25%之氧化锆, 此係由至少75%之鍅石含量來確保。 根據本發明’至少一種選自B2〇3、Ge〇2、、
Sb2〇3、Nb2〇5、Ta2〇5 或 V2〇5 之氧化物、尤其 Ta205 及 Nb2〇5且更尤其Τ&2〇5以及同時至少一種選自Zn〇、?1)〇及
CdO之氧化物、尤其Zn〇的存在可改良基於锆石之耐火產 物的流出抗性。 在添加至少一種選自Al2〇3、Ti02、MgO、Fe203、 ΝιΟ、Mn〇2、c〇0、CuO之氧化物的情況下,必要時有可 能改良本發明之產物的密度。此等添加因此在將產物置於 139781.doc 200951094 腐ϋ性環境中且尤其與熔融玻璃接觸安置之應用中特別有 利°本發明者已發現,在本發明之產物中,且尤其在包括
Ta2〇5之產物中,在使該等添加且尤其Α12〇3與Ti〇2之添加 限於低含量(尤其小於3%,小於2%或甚至小於1%或甚至小 .於0.5% ’以基於氧化物之質量百分比計)時仍然可獲得高 密度。
B 較佳地’向始料中添加至少1 %之二氧化石夕,以便在低 於純錯石緻密化所需溫度的溫度下促進開始緻密化。 厂甘 八他氧化物」為諸如Na2〇或Y2〇3之氧化物。Na20含 量(其可促進鍅石之解離)應減到最低。較佳地,此等氧化 物為由原料引入之雜質,且其並非所需成分,而僅為可容 許者。在小於1.5%之含量下,認為此等「其他氧化物」之 影響實質上不會改變所獲得之結果。 較佳地,本發明之燒結產物中氧化物NhO及γ2〇3中之 每一者的含量小於0.5%,較佳小於〇 3%,更佳小於 φ 0.15%(以基於氧化物之質量百分比計)。 根據習知包括步驟幼至勾之方法可製得燒結耐火塊體。 此方法視情況在步驟a)之前包括研磨錘石來源及其他原料 之步驟。藉由此步驟,有可能獲得材料之良好後續緻密化 所需之習知粒徑特徵。詳言之,由此製備之粉末可具有小 於50 μχη或甚至小於4〇 μιη或甚至小於2〇 μιη或甚至小於5 μιη或甚至小於4 μηι之中值粒徑(〇5〇)。 在步驟a)中’投與所有原料以便使混合物具有所要之平 均重量化學組成,且接著在習用於錯石燒結方法中之去絮 139781.doc -13- 200951094 凝劑及/或黏合劑(例如磷酸)之存在下混合。 原料之混合物可視情況在轉至步驟b)之前先霧化。 隨後在步驟b)中,(例如)藉由等靜壓壓製法來使該混合 物成形,以便形成具有所要大小之塊體。 可使用諸如粉漿洗鑄、單軸壓製、凝膠澆鑄、振動壓鑄 (vibrocasting)之其他技術或該等技術之組合。 在步驟c)中’在空氣中於大氣壓力下且在包含於μ⑼。。 與1,700 C之間的溫度下使生㈣分燒結,以便形成緻密耐 火塊體。 當然,本發明不限於所述作為說明性及非限制性實例提 供的實施例。 實例 出於說明本發明為目的,給出以下非限制性實例。 在此等實例中,所使用之以下原料已經選定,給出之百 分比為質量百分比: _經微米尺寸化之鍅石,其具有以下平均化學分析結果 (以重量 s十):ZrO2+Hf02 : 66%,Si02 : 33% ’ Al2〇3 : 0.3%,P2〇5 : 0.3% ’ Fe2〇3 : 〇 〇7% ; Ti〇2 : 〇 〇8%,及 少於0.2%的諸如Ah之其他化合物。該等粒子具有厶5 μη之中值粒徑(d50)。 -80%磷酸h3p〇4溶液。 -含有99%以上Zno之氧化鋅,其中該等粒子之令值粒徑 (D50)為約3 μιη 〇 -含有約95% Ti〇2之氧化鈦,且其中粒子之中值粒徑為 139781.doc •14· 200951094 . 2·3 μηι。 -氧化鋁,其中該等粒子之中值粒徑為約3μιη。 -氧化鍺,其含有約99〇/〇之Ge〇2且其中該等粒子之中值粒 控為約3 μιη。 氧化鈕,其含有約99.85%之Ta2〇5且其中該等粒子之粒 , 小於 44 μηι。 根據習知包括以下步驟之方法製得燒結耐火塊體: a) 將原料混合以形成始料, b) 由該混合物成形生达部分, c) 燒結該生坯部分。 在步驟a)中,投與所有原料以便使混合物具有所要之平 均重量化學組成,且接著在習知使用之燒結劑、去絮凝劑 及/或黏合劑(例如磷酸)之存在下加以混合。 原料之混合物可視情況在轉至步驟a)之前加以霧化。 隨後在步驟b)中,藉由等靜壓壓製法來使該混合物成 ❿ 形,以便形成具有200 mm之直徑及約200 mm之高度的圓 柱形生坯部分。 接著在步驟c)中,在空氣中於大氣壓力下且在^㈧它之 • 燒結溫度下使生坯部分燒結’其中將平台溫度維持20小 . 時。 為了量測流出程度,獲取具有邊長為25 mm之方形戴面 及75 mm之高度的產物之棒形樣品,且使其經受〖^⑽^下 之加熱,歷時24小時。在此階段結束時,量測樣品之體 積。將樣品在加熱後之體積稱為rVm」,樣品在加熱前之 139781.doc -15- 200951094 體積稱為「Vi」,且該兩體積之間的差為Γ Va」(體積增 量):Va = Vm-Vi。將比率Va/Vi稱為「流出指數」,其在表 1中註為「EI」。 所使用之原料之份數(質量百分比)以及所獲得之燒結產 物之表觀孔隙度(%)、密度及「EI」指數係在表給出。 表1 1 2 3 4 5 6(比較) 7(比較) 鉛石 98.75 98.5 97 97.3 97.33 98.5 98.6 ZnO 0.25 0.5 2.5 2.5 2.5 h3p〇4 0.17 -- ai2o, 0.8 0.3 Ta2〇s 1 1 0.5 Ge〇2 0.2 Ti02 0.7 1.1 表觀孔隙度 4.14 4.71 0.12 0.79 1.23 0.29 0.25 表觀密度(g/cm3) 4.11 4.10 4.31 1^.28 4.28 4.32 4.39 EI 3% 6% 3% 5% 3% 12% 9% 表1清楚地展示本發明之產物具有極其良好之流出抗 性。此等產物之密度仍然等於已測試之已知產物的密度。 該等產物因此可完全適合於用於玻璃熔爐中。 139781.doc 16-
Claims (1)
- 200951094 七、申請專利範圍: 1. 一種由始料精製之燒結產物,該始料以基於氧化物之質 量百分比計含有75-99°/。锆石且以基於氧化物之質量百分 比計具有以下平均重量化學組成: 60%<Zr〇2<72.8% ; 27%<Si02<36% ; 0.1 %$B2〇3 + Ge〇2 + P2〇5 + Sb2〇3+Nb2〇5 + Ta2〇5 + V2〇5 ; 0.1%<ZnO +PbO +CdO ; B2〇3 + Ge〇2+P2〇5+Sb2〇3+Nb2〇5+Ta2〇5+V2〇5+ZnO+ PbO+CdO<5% ; 0%<Al2〇3+Ti〇2+MgO+Fe2〇3+NiO+Mn〇2+CoO+CuO<5 % ; 其他氧化物:$1.5%, 總計100%。 2. 如前述請求項之燒結產物,其中: 0.1%$Ge〇2+P2〇5+Nb2〇5+Ta2〇5,且/或 W 0 WZnO,且/或 Ge〇2+P2〇5+Nb2〇5+Ta2〇5+Zn〇S5%,且/或 . 0%<Al2〇3+Ti〇2+MgO+Fe2〇3+NiO+Mn〇2+CoO+CuO<5 %。 3. 如前述請求項中任一項之燒結產物,其中該Ta205含量以 基於氧化物之質量百分比計大於0.3%且小於3%。 4. 如前述請求項中任一項之燒結產物,其中該Ta205含量以 基於氧化物之質量百分比計大於0.8%。 139781.doc 200951094 5. 如前述請求項中任一項之燒結產物,其中該ZnO含量以 基於氧化物之質量百分比計大於0.3%且小於3%。 6. 如前述請求項中任一項之燒結產物,其中該ZnO含量以 基於氧化物之質量百分比計大於0.8%。 7. 如前述請求項中任一項之燒結產物,其以基於氧化物之 質量百分比計包括超過0.05%之至少一種來自Al2〇3、 Ti02、MgO、Fe2〇3、NiO、Mn〇2、CoO 及 CuO 之氧化 物。 8. 如前述請求項中任一項之燒結產物,其以基於氧化物之 質量百分比計包括超過0.3%之至少兩種來自Al2〇3、 Ti〇2、MgO ' Fe2〇3、NiO、Mn〇2、CoO 及 CuO 之氧化 物。 9. 如前述請求項中任一項之燒結產物,其以基於氧化物之 質量百分比計具有如下化學組成:〇·〇5%<Α12〇3 +Ti02<3〇/〇。 10. 如前述請求項中任一項之燒結產物,其以基於氧化物之 質量百分比計具有如下化學組成:〇.9%<A12〇3 +Ti02。 11. 如前述請求項中任一項之燒結產物,其以基於氧化物之 質量百分比計具有如下平均重量化學組成: 60%<Zr〇2<72.4% ; 27%<Si02<36% ; 0.2%<B2〇3+Nb2〇5 + Ta2〇5<2.5% ; 0.2%<ZnO<2.5% ; 0.2%<Al2O3+Ti〇2+MgO+NiO+Mn〇2+CoO+CuO<3% ; 】3978].doc 200951094 其他氧化物:^1.5%, 總計100%。 12.如前述請求項中任一項之燒結產物,其以基於氧化物之 質量百分比計具有如下平均重量化學組成: 60%<ZrO2<72.4% ; 27%<Si02<36°/〇 ; 0.2%<Nb2〇5+Ta2〇5<2.5% ; ❹ 〇.2%<ZnO<2.5% ; 〇.2%<A12〇3+Ti〇2<2% ; 其他氧化物:$1.5%, 總計100%。 13·如前述請求項中項之燒結產物,其中該「其他氧化 物」之含量以基於氧化物之質量百分比計小於〇 5%。 Μ.如^請求項中任—項之燒結產物,其中該氧化紀恤 含量以基於氧化物之質量百分比計小於〇 5%。 15. 如前述請求項中任一項 $ <抚、σ座物其中該锆石含量以 基於氧化物之質量百分比計大於5〇/〇。 16. —種製備燒結產物之方法,其包括以下步驟: a) 將原料混合以形成始料; b) 由该始料成型生坯部分; 〇燒結該生㈣分以獲得該燒結產物, 測定該始料以使該產物符合前述請求項中之任 步驟a)中所用之該眉料 且 茨项枓具有小於5 0 μπι之中值粒徑。 17. 如前述請求瑁夕士、+ ^ 項之方法,其中步驟a)中所用之該原料具有 139781.doc 200951094 小於5 μπι之中值粒徑。 18. 根 一種^請求項1至15中任—項之產物或已根據或能夠 據如前兩個請求項中任一項之方法製得之產物的用途 其係用於玻璃熔爐中該產物與熔融玻璃接觸之區域中 139781.doc ❹-4- 200951094 四、指定代表圖: (一) 本案指定代表圖為:(無) (二) 本代表圖之元件符號簡單說明: 五、本案若有化學式時,請揭示最能顯示發明特徵的化學式:(無)139781.doc
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EP2956426A4 (en) | 2013-02-18 | 2016-08-17 | Saint Gobain Ceramics | SINTERED ZIRCON MATERIAL FOR FORMING BLOCK |
US11465940B2 (en) | 2014-03-31 | 2022-10-11 | Saint-Gobain Ceramics & Plastics, Inc. | Sintered zircon material for forming block |
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US10308556B2 (en) | 2014-03-31 | 2019-06-04 | Saint-Gobain Ceramics & Plastics, Inc. | Sintered zircon material for forming block |
US10173290B2 (en) | 2014-06-09 | 2019-01-08 | Scoperta, Inc. | Crack resistant hardfacing alloys |
JP7002169B2 (ja) | 2014-12-16 | 2022-01-20 | エリコン メテコ(ユーエス)インコーポレイテッド | 靱性及び耐摩耗性を有する多重硬質相含有鉄合金 |
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CN102007089B (zh) | 2013-11-13 |
KR20110004871A (ko) | 2011-01-14 |
FR2929941A1 (fr) | 2009-10-16 |
US20110107796A1 (en) | 2011-05-12 |
EP2265559A2 (fr) | 2010-12-29 |
CA2725452A1 (fr) | 2009-11-19 |
RU2010141391A (ru) | 2012-05-20 |
BRPI0910732A2 (pt) | 2015-09-29 |
KR101595021B1 (ko) | 2016-02-17 |
JP2011516396A (ja) | 2011-05-26 |
EP2265559B1 (fr) | 2017-06-14 |
TWI486322B (zh) | 2015-06-01 |
WO2009138611A2 (fr) | 2009-11-19 |
JP5694141B2 (ja) | 2015-04-01 |
CN102007089A (zh) | 2011-04-06 |
US8258068B2 (en) | 2012-09-04 |
FR2929941B1 (fr) | 2011-03-04 |
WO2009138611A3 (fr) | 2010-05-06 |
MX2010011010A (es) | 2010-11-12 |
UA101025C2 (ru) | 2013-02-25 |
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