Abstract:
A fluorophor comprising, as a main component, an a type sialon crystal which contains at least A element (wherein A represents one or more elements selected from among Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Er, Tm and Yb), M element (wherein M represents one or more elements selected from among Li, Na, Mg, Ca, Y, La, Gd and Lu), Si, Al, oxygen and nitrogen, and is represented by the general formulae: (M x , A y )(Si 12-(m+n) Al m+n )(O n N 16-n ) (1) m = d M ×x + d A ×y (2) 0.2 = x = 2.4 (3) 0.001 = y = 0.4 (4) and 0.5×m
Abstract translation:一种荧光体,其中,作为主要成分,含有至少含有A元素的A型赛隆晶体(其中,A表示选自Mn,Ce,Pr,Nd,Sm,Eu,Tb,Dy,Er,Tm中的一种以上的元素 和Yb),M元素(其中M表示选自Li,Na,Mg,Ca,Y,La,Gd和Lu中的一种或多种元素),Si,Al,氧和氮,并且由以下通式表示: (M x x,A y y)(Si 12 - (m + n)Al m + n n)( (1)m = d M×x + d A×A××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××× 2)0.2 = x = 2.4(3)0.001 = y = 0.4(4)和0.5×m
Abstract:
A sintered ceramic material comprises a crystalline phase and an intergranular phase comprising a glass phase. The material is manufactured from a starting powder being mixed with an additive comprising one or more metal from a group of Li, Na, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Th, Pa or U. The additive is in non oxide form, or in a form which transforms to a metal or nitride during a synthesis in nitrogen atmosphere and the resulting glass phase having a high nitrogen content with a N:O ratio higher than 35:65 and a glass transition temperature above 950 °C.
Abstract:
The invention relates to a new group of nitrogen rich -sialon composit ions with the general formula M x Si 12-(m+n) Al (m+n) O n N 16-n , where x (= m/v) ≤ 2, v is the average valency of the M cation, and the ratio m/(m+n) ≥ 0.7. The new compositions obtained by this method have one of the following elements M, or combinations thereof, in the cavity of the -sialon structure: Li, Na, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Th, Pa or U.
Abstract translation:本发明涉及一组新的具有通式M x Si 12 - (m + n)Al(m + n)的富氮硅铝氧氮复合离子 )其中x(= m / v)= 2,v是M阳离子的平均化合价,并且比例 m /(m + n)= 0.7。 通过该方法获得的新组合物在塞隆结构的空腔中具有以下元素M或其组合:Li,Na,Mg,Ca,Sr,Ba,Sc,Y,La,Ce,Pr, Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Th,Pa或U.
Abstract translation:具有抗切削刃磨损的赛隆插件,具有优异的防损性能,确保延长使用寿命; 以及配有该刀具的切削刀具。 提供了一种赛隆插入物,其特征在于由赛隆烧结产品组成,所述赛隆烧结产品具有由α-赛隆和β-赛隆组成的赛隆相,并以氧化物计,含有0.5至5mol%的至少一种选自 的来自烧结助剂的Sc,Y,Dy,Yb和Lu的比例,其中显示出赛隆相中α-赛隆比的a比在10〜40%的范围内,而β型赛隆的Z值 由下式表示:Si 6 -Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z 4.2)在0.2〜0.7的范围内,该赛隆烧结体的平均热膨胀系数为室温〜1000℃= 3.5×10 -6 / K,室温的导热系数 温度至1000℃= 10W / m·K。 此外,提供了一种具有保持在保持器中的该塞隆插件的切削工具。
Abstract:
Bekannte Si 3 N 4 - und SiAlON-Schneidwerkstoffe verrunden bei den üblichen langen kontinuierlichen Schnitten in Grauguss (GG) anfangs sehr schnell an der Schneidkante, was als Initialverschleiß bezeichnet wird. Erfindungsgemäß wird deshalb vorgeschlagen, dass der Werkstoffs aus den Komponenten A, einem alpha/beta-SiAlON, und B, einem Hartstoff, besteht, in der Zusammensetzung von 70 bis 97 Vol% der Komponente A und 3 bis 30 Vol% der Komponente B.
Abstract:
Keramischer Werkstoff hoher Stoßfestigkeit, insbesondere auf Basis von Si 3 N 4 oder ZrO 2 , mit einer Härte HV10 von maximal 15,5 GPa und einem E-Modul bei Raumtemperatur von kleiner 330 GPa, wobei der Werkstoff 0,2 bis 5 Gew.-% Kohlenstoffpartikel enthält, die eine maximale Partikelgröße von 5 µm aufweisen, ein Verfahren zur Herstellung des keramischen Werkstoffs und dessen Verwendung, insbesondere als Wälzkörper in Lagern.
Abstract:
A continuous process for the manufacture of a ceramic sintered comopact wherein the process comprises the steps of: forming a green compact from a powder mixture comprising a first component comprising compounds which contain elements of silicon, aluminum, oxygen and nitrogen; and the powder mixture further comprising a second component comprising a compound of at least one element selected from the group consisting of yttrium, scandium, cerium, lanthanum and the metals of the lanthanide series, and the second component comprising between 0.1 and 10 weight percent of the powder mixture; heat treating the green compact wherein the heat treatment comprises continously passing the green compact through at least one heating zone so as to produce a sintered compact.