TWI670250B - Ceramic composition - Google Patents
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Abstract
一種陶瓷組成物，係可以作為燒結助劑來使用，其包含：以莫耳百分比計為1～2%之氧化鎂、5～15%之氧化鋁、25～40%之二氧化矽、40～55%之氧化鈣、0.1～8%之氧化鐵、0.1～2%之三氧化硫及0.1～2%之氧化鈦；或者，該陶瓷組成物包含：以莫耳百分比計為1～8%之氧化鎂、5～15%之氧化鋁、25～40%之二氧化矽、40～55%之氧化鈣、0.1～8%之氧化鐵、0.1～2%之三氧化硫及0.9～2%之氧化鈦。A ceramic composition, which can be used as a sintering aid, comprising: 1 to 2% of magnesium oxide, 5 to 15% of alumina, 25 to 40% of ceria, 40 to 55% of calcium oxide, 0.1 to 8% of iron oxide, 0.1 to 2% of sulfur trioxide and 0.1 to 2% of titanium oxide; or, the ceramic composition comprises: 1 to 8% by mole percentage Magnesium oxide, 5 to 15% alumina, 25 to 40% cerium oxide, 40 to 55% calcium oxide, 0.1 to 8% iron oxide, 0.1 to 2% sulfur trioxide, and 0.9 to 2% Titanium oxide.
Description
本發明係關於一種陶瓷組成物，特別係關於一種作為燒結助劑來使用之陶瓷組成物。The present invention relates to a ceramic composition, and more particularly to a ceramic composition for use as a sintering aid.
在陶瓷燒結的過程中，往往需引入燒結助劑，以形成玻璃相等液相，使陶瓷粒子在液相中的重排與粘性流動，進而提升陶瓷材料緻密性並可以降低燒結溫度，最終形成一陶瓷工件。In the process of ceramic sintering, it is often necessary to introduce a sintering aid to form an equal liquid phase of the glass, so that the ceramic particles are rearranged and viscous in the liquid phase, thereby improving the compactness of the ceramic material and lowering the sintering temperature, thereby finally forming a Ceramic workpiece.
舉例而言，鈣鋁黃長石（C2AS gehlenite）為由鈣鋁矽酸鹽所組成的習用陶瓷組成物，其含有氧化鈣、氧化鋁及二氧化矽，可以應用於製造玻璃及陶瓷原料。鈣鋁黃長石在長石中熔點是最高的一種，其熔點約為1550℃，因而鈣鋁黃長石在作為陶瓷燒結助劑使用時，對於燒結溫度的降低效果有限，故仍需要提供一種陶瓷組成物，以改善前述問題。For example, C2AS gehlenite is a conventional ceramic composition composed of calcium aluminate, which contains calcium oxide, aluminum oxide and cerium oxide, and can be used for the manufacture of glass and ceramic raw materials. Calcium aluminum yellow feldspar is the highest melting point in feldspar, and its melting point is about 1550 ° C. Therefore, when used as a ceramic sintering aid, the effect of reducing the sintering temperature is limited, so it is still necessary to provide a ceramic composition. To improve the aforementioned problems.
為解決上述問題，本發明的目的係提供一種陶瓷組成物，其能夠作為燒結助劑來使用者。In order to solve the above problems, an object of the present invention is to provide a ceramic composition which can be used as a sintering aid for a user.
本發明之陶瓷組成物，係包含：以莫耳百分比計為1～2%之氧化鎂、5～15%之氧化鋁、25～40%之二氧化矽、40～55%之氧化鈣、0.1～8%之氧化鐵、0.1～2%之三氧化硫及0.1～2%之氧化鈦；或者，該陶瓷組成物係包含以莫耳百分比計為1～8%之氧化鎂、5～15%之氧化鋁、25～40%之二氧化矽、40～55%之氧化鈣、0.1～8%之氧化鐵、0.1～2%之三氧化硫及0.9～2%之氧化鈦。依據上述，藉由氧化鎂、氧化鋁、二氧化矽、氧化鈣、氧化鐵、三氧化硫及氧化鈦的組成配比，使該陶瓷組成物的熔點係顯著地低於鈣鋁黃長石，因而能夠作為燒結助劑來使用，以有效地降低陶瓷的燒結溫度，進而大幅減低陶瓷工件製作的成本之功效；再者，當該陶瓷組成物含有以莫耳百分比計為1～2%之氧化鎂或以莫耳百分比計為0.9～2%之氧化鈦時，在該陶瓷組成物作為燒結助劑使用，與該陶瓷黏土共同燒結形成該陶瓷工件時，能夠有效提高該陶瓷工件的體密度，為本發明之功效。The ceramic composition of the present invention comprises: 1 to 2% of magnesium oxide, 5 to 15% of alumina, 25 to 40% of cerium oxide, 40 to 55% of calcium oxide, 0.1 in terms of mole percentage. 8% of iron oxide, 0.1 to 2% of sulfur trioxide and 0.1 to 2% of titanium oxide; or, the ceramic composition contains 1 to 8% of magnesium oxide in percentage by mole, 5 to 15% Alumina, 25 to 40% of cerium oxide, 40 to 55% of calcium oxide, 0.1 to 8% of iron oxide, 0.1 to 2% of sulfur trioxide and 0.9 to 2% of titanium oxide. According to the above, the melting point of the ceramic composition is significantly lower than that of the calcium aluminum feldspar by the composition ratio of magnesium oxide, aluminum oxide, cerium oxide, calcium oxide, iron oxide, sulfur trioxide and titanium oxide. It can be used as a sintering aid to effectively reduce the sintering temperature of the ceramic, thereby greatly reducing the cost of the ceramic workpiece. Further, when the ceramic composition contains 1 to 2% of magnesium oxide as a percentage of moles Or when the titanium oxide is 0.9 to 2% in terms of the percentage of moles, when the ceramic composition is used as a sintering aid, and the ceramic workpiece is co-sintered to form the ceramic workpiece, the bulk density of the ceramic workpiece can be effectively increased. The efficacy of the invention.
本發明之陶瓷組成物，其中，該陶瓷組成物包含：以莫耳百分比計為0.1～5%之一鹼金屬氧化物；如此，藉由該鹼金屬氧化物的添加可以降低該陶瓷組成物的熔點，而可以進一步降低陶瓷的燒結溫度。The ceramic composition of the present invention, wherein the ceramic composition comprises: 0.1 to 5% by mole of an alkali metal oxide; thus, the addition of the alkali metal oxide can lower the ceramic composition The melting point can further reduce the sintering temperature of the ceramic.
本發明之陶瓷組成物，其中，氧化鎂的莫耳百分比與氧化鐵的莫耳百分比之總和較佳可以大於4%；如此，可以進一步降低陶瓷的燒結溫度。In the ceramic composition of the present invention, the sum of the molar percentage of magnesium oxide and the molar percentage of iron oxide may preferably be more than 4%; thus, the sintering temperature of the ceramic can be further lowered.
本發明之陶瓷組成物，其中，該鹼金屬氧化物為氧化鉀、氧化鈉、氧化銣或氧化銫。如此，由於氧化鈉熔點為1132℃、氧化鉀熔點為770℃、氧化銣熔點為＞500℃、氧化銫熔點為490℃，均可以達成有效降低陶瓷的燒結溫度之效果。The ceramic composition of the present invention, wherein the alkali metal oxide is potassium oxide, sodium oxide, cerium oxide or cerium oxide. Thus, since the melting point of sodium oxide is 1132 ° C, the melting point of potassium oxide is 770 ° C, the melting point of cerium oxide is >500 ° C, and the melting point of cerium oxide is 490 ° C, the effect of effectively lowering the sintering temperature of the ceramic can be achieved.
為讓本發明之上述及其他目的、特徵及優點能更明顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式，作詳細說明如下：The above and other objects, features and advantages of the present invention will become more <RTIgt;
本發明之一實施例的陶瓷組成物可以包含氧化鎂（magnesium oxide (MgO)）、氧化鋁（aluminum oxide (Al 2O 3)）、二氧化矽（silicon dioxide (SiO 2)）、氧化鈣（calcium oxide (CaO)）、氧化鐵（ferric oxide (Fe 2O 3)）、三氧化硫（sulfur trioxide (SO 3)）及氧化鈦（titanium oxide (TiO 2)）。舉例而言，該陶瓷組成物可以包含以莫耳百分比計為1～8%之氧化鎂、5～15%之氧化鋁、25～40%之二氧化矽、40～55%之氧化鈣、0.1～8%之氧化鐵、0.1～2%之三氧化硫及0.1～2%之氧化鈦；較佳地，該陶瓷組成物係包含以莫耳百分比計為1～8%之氧化鎂，或者包含以莫耳百分比計為0.9～2%之氧化鈦。 The ceramic composition of one embodiment of the present invention may comprise magnesium oxide (MgO), aluminum oxide (Al 2 O 3 ), silicon dioxide (SiO 2 ), calcium oxide ( Calcium oxide (CaO)), ferric oxide (Fe 2 O 3 ), sulfur trioxide (SO 3 ), and titanium oxide (TiO 2 ). For example, the ceramic composition may comprise 1 to 8% of magnesium oxide, 5 to 15% of alumina, 25 to 40% of cerium oxide, 40 to 55% of calcium oxide, 0.1% by mole. 8% of iron oxide, 0.1 to 2% of sulfur trioxide and 0.1 to 2% of titanium oxide; preferably, the ceramic composition contains 1 to 8% of magnesium oxide as a percentage of mole, or From 0.9 to 2% titanium oxide based on the percentage of moles.
又，該陶瓷組成物可以進一步包含以莫耳百分比計為0.1～5%之一鹼金屬氧化物。舉例而言，該鹼金屬氧化物可以為、氧化鉀（potassium oxide (K 2O）、氧化鈉（sodium oxide (Na 2O)）、氧化銣（rubidium oxide (Rb 2O）、氧化銫（cesium oxide (Cs 2O）。如此，藉由該鹼金屬氧化物的添加可以降低該陶瓷組成物的熔點，而可以進一步降低陶瓷的燒結溫度。 Further, the ceramic composition may further comprise an alkali metal oxide in an amount of from 0.1 to 5% by mol. For example, the alkali metal oxide may be potassium oxide (K 2 O), sodium oxide (Na 2 O), rubidium oxide (Rb 2 O), cesium oxide (cesium). Oxide (Cs 2 O) Thus, by adding the alkali metal oxide, the melting point of the ceramic composition can be lowered, and the sintering temperature of the ceramic can be further lowered.
再者，氧化鎂的莫耳百分比與氧化鐵的莫耳百分比之總和較佳可以大於4%。如此，可以進一步降低陶瓷的燒結溫度。Furthermore, the sum of the percentage of moles of magnesium oxide and the percentage of moles of iron oxide may preferably be greater than 4%. In this way, the sintering temperature of the ceramic can be further reduced.
該陶瓷組成物係可以藉由各種習知方法所形成。舉例而言，工者可以將氧化鎂、氧化鋁、二氧化矽、氧化鈣、氧化鐵及三氧化硫經過球磨等方式混合；又或者，工者也可以將一碳酸化合物加入飛灰中，續對包含該碳酸化合物之飛灰進行加熱，即可以合成獲得該陶瓷組成物；於本實施例中，係將石灰（碳酸鈣純度達85%以上）加入飛灰中（該飛灰主要包含以莫耳百分比計為0.1～3.5%之氧化鎂、18～30%之氧化鋁、45～66%之二氧化矽、0.01～5%之氧化鈣、5～26%之氧化鐵、0.1～1.5%之三氧化硫及0.1~1.5%之氧化鈦），續進行加熱以合成獲得該陶瓷組合物。The ceramic composition can be formed by various conventional methods. For example, a worker may mix magnesium oxide, aluminum oxide, cerium oxide, calcium oxide, iron oxide, and sulfur trioxide by ball milling, or a worker may also add a carbonic acid compound to the fly ash. The ceramic composition can be synthesized by heating the fly ash containing the carbonic acid compound; in the embodiment, the lime (the purity of the calcium carbonate is more than 85%) is added to the fly ash (the fly ash mainly contains Mo The percentage of the ear is 0.1 to 3.5% of magnesium oxide, 18 to 30% of alumina, 45 to 66% of cerium oxide, 0.01 to 5% of calcium oxide, 5 to 26% of iron oxide, and 0.1 to 1.5%. Sulfur trioxide and 0.1 to 1.5% of titanium oxide) are continuously heated to synthesize the ceramic composition.
依據上述，藉氧化鎂、氧化鋁、二氧化矽、氧化鈣、氧化鐵、三氧化硫及氧化鈦的組成配比，使該陶瓷組成物的熔點係顯著地低於鈣鋁黃長石，因而能夠作為燒結助劑來使用，例如可以將該陶瓷組成物加入黏土陶瓷中，即可以於1200℃的溫度以下進行燒結，以獲得一陶瓷工件。According to the above composition, the composition ratio of the magnesium oxide, the aluminum oxide, the cerium oxide, the calcium oxide, the iron oxide, the sulfur trioxide and the titanium oxide makes the melting point of the ceramic composition significantly lower than that of the calcium aluminum feldspar, thereby enabling As a sintering aid, for example, the ceramic composition can be added to a clay ceramic, that is, it can be sintered at a temperature of 1200 ° C or lower to obtain a ceramic workpiece.
此外，藉由該陶瓷組成物的熱分解溫度高於碳酸鈣，當該陶瓷組成物取代碳酸鈣（CaCO 3）加入製造塑膠或石頭紙（stone paper）的過程中，不僅可以降低所製得的塑膠（或石頭紙）的製造成本，更可以提升所製得的塑膠（或石頭紙）的熱抵抗性、尺寸穩定性及堅硬性等性質。 In addition, by the fact that the ceramic composition has a thermal decomposition temperature higher than that of calcium carbonate, when the ceramic composition is substituted for calcium carbonate (CaCO 3 ) and is added to the process of manufacturing plastic or stone paper, not only can the obtained product be reduced. The manufacturing cost of plastic (or stone paper) can improve the thermal resistance, dimensional stability and hardness of the prepared plastic (or stone paper).
為證實本發明之陶瓷組成物確實具有低於習用陶瓷組成物（即，鈣鋁黃長石）的熔點，且該陶瓷組成物的添加可以提升所製造獲得之陶瓷工件的收縮率與體密度，遂進行以下試驗：In order to confirm that the ceramic composition of the present invention does have a melting point lower than that of the conventional ceramic composition (i.e., feldspar), and the addition of the ceramic composition can increase the shrinkage and bulk density of the ceramic workpiece obtained, Carry out the following tests:
（A）熔點(A) melting point
於本試驗中，係製備具有如第1表所示之組成配比的陶瓷組成物，並量測各組陶瓷組成物的熔點。In the present test, a ceramic composition having a composition ratio as shown in Table 1 was prepared, and the melting points of the respective ceramic compositions were measured.
第1表：本試驗各組陶瓷組成物之組成配比 組別 氧化鉀 氧化鎂 氧化鋁 二氧化矽 氧化鈣 氧化鐵 三氧化硫 氧化鈦 A01 1.50 5.32 12.3 25.80 48.78 4.68 0.42 1.20 A02 0.51 2.78 9.12 30.15 53.21 2.60 0.97 0.66 A03 0.89 4.44 8.56 35.20 44.02 5.78 0.78 0.33 A04 0.56 5.41 7.74 30.22 51.99 2.20 0.45 1.43 A05 1.48 2.37 12.80 32.72 42.4 6.38 0.48 1.37 A06 0.63 3.47 8.10 37.80 47.06 1.73 0.55 0.66 A07 0.00 1.82 8.14 32.78 52.02 4.33 0.31 0.60 A08 0.00 2.15 9.22 31.57 50.5 5.39 0.72 0.45 A09 0.75 5.11 8.32 33.70 45.4 5.27 1.1 0.35 A10 0.33 2.89 9.37 30.80 51.89 3.05 1.01 0.66 Table 1: The composition ratio of each group of ceramic compositions in this test Groups Potassium Oxide Magnesium Oxide Alumina Oxide Oxide Calcium Oxide Iron Oxide Titanium Oxide Titanium A01 1.50 5.32 12.3 25.80 48.78 4.68 0.42 1.20 A02 0.51 2.78 9.12 30.15 53.21 2.60 0.97 0.66 A03 0.89 4.44 8.56 35.20 44.02 5.78 0.78 0.33 A04 0.56 5.41 7.74 30.22 51.99 2.20 0.45 1.43 A05 1.48 2.37 12.80 32.72 42.4 6.38 0.48 1.37 A06 0.63 3.47 8.10 37.80 47.06 1.73 0.55 0.66 A07 0.00 1.82 8.14 32.78 52.02 4.33 0.31 0.60 A08 0.00 2.15 9.22 31.57 50.5 5.39 0.72 0.45 A09 0.75 5.11 8.32 33.70 45.4 5.27 1.1 0.35 A10 0.33 2.89 9.37 30.80 51.89 3.05 1.01 0.66
接著量測第A01～A10組之陶瓷組成物的熔點，其測定結果分別為1153℃（第A01組）、1143℃（第A02組）、1151℃（第A03組）、1140℃（第A04組）、1141℃（第A05組）、1150℃（第A06組）、1165℃（第A07組）、1163℃（第A08組）、1137℃（第A09組）及1135℃（第A10組），均介於1100～1200℃之範圍內，且均低於習用陶瓷組成物（即，鈣鋁黃長石，其熔點約為1550℃）的熔點。Next, the melting points of the ceramic compositions of Groups A01 to A10 were measured, and the measurement results were 1153 ° C (Group A01), 1143 ° C (Group A02), 1151 ° C (Group A03), and 1140 ° C (Group A04). ), 1141 ° C (Group A05), 1150 ° C (Group A06), 1165 ° C (Group A07), 1163 ° C (Group A08), 1137 ° C (Group A09) and 1135 ° C (Group A10), Both are in the range of 1100 to 1200 ° C, and are lower than the melting point of the conventional ceramic composition (ie, calcium aluminum feldspar, which has a melting point of about 1550 ° C).
值得注意的是，第A07、A08組之陶瓷組成物的熔點係高於其他各組陶瓷組成物的熔點，顯示該鹼金屬化合物（即，氧化鉀）的添加可以降低該陶瓷組成物的熔點。It is to be noted that the melting point of the ceramic composition of Groups A07 and A08 is higher than the melting points of the other ceramic compositions, indicating that the addition of the alkali metal compound (i.e., potassium oxide) can lower the melting point of the ceramic composition.
（B）體密度(B) bulk density
本試驗係將前述第A01組的陶瓷組成物加入黏土陶瓷中（添加比例為每15克之陶瓷組成物加入85克之黏土陶瓷中），續進行燒結後獲得第B1組的陶瓷工件，以及將黏土陶瓷直接進行燒結以獲得第B0組的陶瓷工件，拍攝二者的截面，以及比較二者的體密度，其結果如第1a、1b圖所示，第B0組的陶瓷工件截面可以觀察到空隙，且其體密度為2.1 g/cm 3，而第B1組的陶瓷工件切片則無法觀察到明顯空隙，其體密度為2.5 g/cm 3，顯示該陶瓷組成物的添加確實可以減少陶瓷工件中的孔隙，並可以提升其體密度。 In this test, the ceramic composition of the above group A01 is added to the clay ceramic (adding a ratio of 15 g of the ceramic composition to the 85 g of the clay ceramic), and the ceramic workpiece of the group B1 is obtained after sintering, and the clay ceramic is obtained. Direct sintering is performed to obtain the ceramic workpiece of Group B0, the cross sections of the two are taken, and the bulk densities of the two are taken, and the results are as shown in Figs. 1a and 1b, and voids can be observed in the cross section of the ceramic workpiece of Group B0, and The bulk density was 2.1 g/cm 3 , and the ceramic workpiece of the B1 group could not observe obvious voids, and the bulk density was 2.5 g/cm 3 , indicating that the addition of the ceramic composition can indeed reduce the porosity in the ceramic workpiece. And can increase its body density.
（C）氧化鎂含量對體密度的影響(C) Effect of magnesium oxide content on bulk density
本試驗係同樣將該陶瓷組成物加入該黏土陶瓷中，續進行燒結後獲得該陶瓷工件，該陶瓷組成物分別含有以莫爾百分比計為0、1、2、3、4、6、8及10%之氧化鎂，依所添加之陶瓷組成物的氧化鎂含量及該陶瓷工件的體密度繪製折線圖，其結果如第2圖所示，該陶瓷組成物含有以莫耳百分比計為1～2%之氧化鎂時，該陶瓷工件具有較大的體密度。In the test, the ceramic composition is also added to the clay ceramic, and the ceramic workpiece is obtained after continuous sintering, and the ceramic composition respectively contains 0, 1, 2, 3, 4, 6, and 8 in terms of mole percentage. 10% magnesium oxide, according to the magnesium oxide content of the ceramic composition added and the bulk density of the ceramic workpiece, the result is shown in Fig. 2, the ceramic composition contains 1% by mole. The ceramic workpiece has a large bulk density when 2% of the magnesium oxide is used.
（D）氧化鈦含量對體密度的影響(D) Effect of titanium oxide content on bulk density
本試驗亦將該陶瓷組成物加入該黏土陶瓷中，進行燒結以獲得該陶瓷工件，該陶瓷組成物分別含有以莫爾百分比計為0、0.2、0.4、0.8、0.9、1.0、1.2、1.6、2及2.4%之氧化鈦，依所添加之陶瓷組成物的氧化鈦含量及該陶瓷工件的體密度繪製折線圖，其結果如第3圖所示，該陶瓷組成物含有以莫耳百分比計為0.9～2%之氧化鈦時，該陶瓷工件具有較大的體密度。In the test, the ceramic composition is also added to the clay ceramic to be sintered to obtain the ceramic workpiece, and the ceramic composition respectively contains 0, 0.2, 0.4, 0.8, 0.9, 1.0, 1.2, 1.6 in terms of mole percentage. 2 and 2.4% of titanium oxide, according to the titanium oxide content of the ceramic composition added and the bulk density of the ceramic workpiece, the result is shown in Fig. 3, the ceramic composition is expressed as a percentage of moles. When the titanium oxide is 0.9 to 2%, the ceramic workpiece has a large bulk density.
綜上所述，藉由氧化鎂、氧化鋁、二氧化矽、氧化鈣、氧化鐵、三氧化硫及氧化鈦的組成配比，使該陶瓷組成物的熔點係顯著地低於鈣鋁黃長石，因而能夠作為燒結助劑來使用，以有效地降低陶瓷的燒結溫度，進而大幅減低陶瓷工件製作的成本之功效。In summary, the melting point of the ceramic composition is significantly lower than that of calcium aluminum feldspar by the composition ratio of magnesium oxide, aluminum oxide, cerium oxide, calcium oxide, iron oxide, sulfur trioxide and titanium oxide. Therefore, it can be used as a sintering aid to effectively reduce the sintering temperature of the ceramic, thereby greatly reducing the cost of the production of the ceramic workpiece.
再者，當該陶瓷組成物含有以莫耳百分比計為1～2%之氧化鎂或以莫耳百分比計為0.9～2%之氧化鈦時，在該陶瓷組成物作為燒結助劑使用，與該陶瓷黏土共同燒結形成該陶瓷工件時，能夠有效提高該陶瓷工件的體密度，為本發明之功效。Further, when the ceramic composition contains magnesium oxide in an amount of 1 to 2% by mole per mole or titanium oxide in an amount of 0.9 to 2% in terms of a mole percentage, the ceramic composition is used as a sintering aid, and When the ceramic clay is co-sintered to form the ceramic workpiece, the bulk density of the ceramic workpiece can be effectively improved, which is an effect of the present invention.
此外，藉由氧化鎂、氧化鋁、二氧化矽、氧化鈣、氧化鐵、三氧化硫及氧化鈦的組成配比，使該陶瓷組成物的熱分解溫度高於碳酸鈣，當該陶瓷組成物取代碳酸鈣加入製造塑膠或石頭紙的過程中，不僅可以降低所製得的塑膠（或石頭紙）的製造成本，更可以提升所製得的塑膠（或石頭紙）的熱抵抗性、尺寸穩定性及堅硬性等性質，為本發明之功效。Further, by using a composition ratio of magnesium oxide, aluminum oxide, cerium oxide, calcium oxide, iron oxide, sulfur trioxide, and titanium oxide, the thermal decomposition temperature of the ceramic composition is higher than that of calcium carbonate when the ceramic composition The replacement of calcium carbonate into the process of manufacturing plastic or stone paper not only reduces the manufacturing cost of the prepared plastic (or stone paper), but also improves the thermal resistance and dimensional stability of the prepared plastic (or stone paper). Properties such as sex and hardness are the effects of the present invention.
雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.
無no
［第1a圖］ 試驗（B）中，第B0組之陶瓷工件的截面照片。 ［第1b圖］ 試驗（B）中，第B1組之陶瓷工件的截面照片。 ［第2圖］ 試驗（C）中，依據氧化鎂含量及陶瓷工件的體密度所繪製之折線圖。 ［第3圖］ 試驗（C）中，依據氧化鈦含量及陶瓷工件的體密度所繪製之折線圖。[Fig. 1a] A cross-sectional photograph of the ceramic workpiece of the group B0 in the test (B). [Fig. 1b] A cross-sectional photograph of the ceramic workpiece of the group B1 in the test (B). [Fig. 2] A line graph drawn in accordance with the magnesium oxide content and the bulk density of the ceramic workpiece in the test (C). [Fig. 3] A line graph drawn in the test (C) based on the content of titanium oxide and the bulk density of the ceramic workpiece.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0346144A1 (en) * | 1988-06-10 | 1989-12-13 | Gte Products Corporation | Ceramic article with improved chemical resistance |
| US20050106486A1 (en) * | 2002-01-08 | 2005-05-19 | Bernd Schultheis | Ceramic toner for electro-photographic printing |
| US20130233207A1 (en) * | 2010-11-15 | 2013-09-12 | Maurizio Iler Marchi | High performance sulfo-aluminous clinker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0346144A1 (en) * | 1988-06-10 | 1989-12-13 | Gte Products Corporation | Ceramic article with improved chemical resistance |
| US20050106486A1 (en) * | 2002-01-08 | 2005-05-19 | Bernd Schultheis | Ceramic toner for electro-photographic printing |
| US20130233207A1 (en) * | 2010-11-15 | 2013-09-12 | Maurizio Iler Marchi | High performance sulfo-aluminous clinker |
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