1714 results about "Tin Element" patented technology

A chamber material made of Al alloy excellent in thermal cracking resistance and chemical and/or physical corrosion resistance and capable of reducing contamination excellently and further having excellent and wide applicable brazing property in a high temperature corrosive circumstance, in which the substrate aluminum material for the chamber material made of Al alloy having an anodized film comprises 0.1 to 2.0% Si, 0.1 to 3.5% Mg, 0.02 to 4.0% Cu on the mass % basis and the balance of Al and impurity element with Cr in the impurity elements being less than 0.04%. Preferably, Fe is 0.1% or less and Mn is 0.04% or less in the impurity element and, further, the total sum of impurity elements other than Cr and Mn being restricted to 0.1$ or less. This invention can be utilized suitably to various materials used in high temperature corrosive circumstance, particularly, in high temperature corrosive gas or plasma atmosphere.

A memory component includes: a first electrode; a memory layer; and a second electrode which are provided in that order, wherein the memory layer includes an ion source layer containing aluminum (Al) together with at least one chalcogen element selected from the group consisting of tellurium (Te), sulfur (S), and selenium (Se), and a resistance variable layer provided between the ion source layer and the first electrode and containing an aluminum oxide and at least one of a transition metal oxide and a transition metal oxynitride having a lower resistance than the aluminum oxide.

The invention relates to a tin-base leadless solder without silver, and relative production. Wherein, it comprises Bi at 7.5-60% (without 7.5%), Cu at 0.1-3.0%, and the left is tin; and it also can contain Zn, Ni, P, Ge, Ga, In, Al, La, Ce, Sb, Cr, Fe, Mn, or Co while the total amount of micro alloy element is not higher than 1.0%. And the production comprises that in protective gas or vacuum, smelting middle alloy Sn-Cu10; then smelting into leadless solder alloy ingot which can be used as solder directly or be made into bar band, wire plate or powder. The inventive solder has low cost while its fusion point can be controlled between 140 and 230Deg. C. And it has strong anti-oxidization and anti-corrosion properties.

The invention discloses an analysis and detection method for impurity elements such as aluminum, calcium, ion, molybdenum, niobium, titanium, tungsten and the like in chromium carbide. The method comprises adding a chromium carbide sample into a dissolving cup, adding hydrofluoric acid, sulphuric acid and nitric acid sequentially, stirring, charging into a sealed high-pressure jar; putting the sealed high-pressure jar into a microwave extinguishing instrument for two times of microwave extinguishment; taking the high-pressure jar out of the microwave extinguishing instrument for cooling, transferring the dissolved chromium carbide liquid sample into a volumeric flask, diluting to a predetermined index, stirring; preparing a chromium substrate matched mixed standard solution series of aluminum, calcium, iron, molybdenum, niobium, titanium and tungsten; measuring element emission power of aluminum, calcium, iron, molybdenum, niobium, titanium, tungsten or the like in a blank liquid sample, a chromium carbide liquid sample and the prepared series mixed standard solution by an inductively coupled plasma atomic emission spectrometer in the same time, obtaining the analysis result by checking a standard working curve or by linear equation calculation. The invention adopts two times of microwave extinguishment using the mixed acid, solves the problem of hardness in chromium carbide decomposition, having a measurement range from 0.010% to 1.00%, which is high in accuracy, and good in precision.

A ceramic electronic component (20) having surface conductor films (23) and side-surface conductor films (24) excellent in burning shrinkage, bonding strength, solder heat resistance, solder wettability and the like. A method of producing a ceramic electronic component which uses a conductive paste containing as a main component Ag-based metal powder, the surface of the metal powder being coated with an organic metal compound or a metal oxide having as a constituting element any one selected from a group consisting of Al, Zr, Ti, Y, Ca, Mg and Zn, to form conductor films (23, 24 25) on a ceramic base material (21). A side-surface conductor film-forming paste differs form a surface conductor film-forming paste in that (1) the former paste has a relatively small coating amount of the organic metal compound or metal oxide and/or (2) contains either at least one kind of inorganic oxide powder as an accessory composition or a comparatively high percentage of the inorganic oxide powder.

The invention relates to a multilayer composite metal oxide catalyst. The multilayer composite metal oxide catalyst has the general formula as follows: Mo[a]Bi[b]Ni[c]Cs[d]Cu[e]Ti[f]A[g]B[h]C[i]O[j], wherein Mo is molybdenum, Bi is bismuth, Ni is nickel, Cs is cesium, Cu is copper, and Ti is titanium; A is at least one element selected from arsenic, tellurium, manganese, cerium, niobium, zirconium, rubidium, cadmium and germanium; B is at least one element selected from cobalt, boron, strontium, tantalum, alkali metal and alkaline earth metal; C is at least one element selected from vanadium, stannum, gallium, zinc, ferrum, tungsten and stibium; and O is oxygen. The composite metal oxide catalyst has a multilayer structure in which the concentrations of all the elements are reduced progressively from a matrix at the inner layer to the outer layer. The catalyst provided by the invention can effectively reduce the local heat accumulation of single pipe reactors and inhibit the formation of hot spots, and has the characteristics of high reactivity and selectivity and long service life.

An improved braze alloy is microalloyed to include about 0.0005 wt % to about 0.5 wt % of at least one aggressively surface acting element selected from tellurium (Te), selenium (Se), antimony (Sb), bismuth (Bi), and gallium (Ga), or any combination thereof. The braze alloys may include at least about 30% by weight of at least one base metal selected from the group of silver (Ag), copper (Cu), gold (Au), nickel (Ni), or aluminum (Al). In one example, a silver braze alloy suitable for brazing a cutter to a drill bit body is microalloyed to improve a characteristic of the braze material.

The present invention relates to a palladium-containing alloy single atom catalyst for selective hydrogenation of alkyne. According to the catalyst, an inert oxide SiO2 is adopted as a carrier, Pd and one or two or more than two materials selected from metal elements in group IB or Group VIII excluding Pd are combined to prepare the supported palladium-containing alloy catalyst so as to make the Pd be in the complete or partial single atom distribution state, wherein the Pd accounts for 0.002-1% of the weight of the carrier, and the content of other metal elements accounts for 0.2-8% of the weight of the carrier. The palladium-containing alloy single atom catalyst has characteristics of high catalytic hydrogenation activity, high ethylene selectivity and the like, and has the good reaction catalysis performance in the reaction for preparing ethylene gas to eliminate trace acetylene through petroleum cracking under the condition close to the industrial condition.

A silver-based alloy thin film is provided for the highly reflective or semi-reflective coating layer of optical discs. Elements that can be added to silver to produce useful silver alloys include zinc, aluminum, copper, manganese, germanium, yttrium, bismuth, scandium, and cobalt. These alloys have moderate to high reflectivity and reasonable corrosion resistance in the ambient environment.

The invention relates to a tin-bismuth-copper series lead-free solder and a manufacture method thereof. Counted by weight percentage, the invention is characterized by including 29 minus or plus 1 percent of Bi, 0.5 minus or plus 0.1 percent of Cu, equal to or more than 0.005 percent and equal to or less than 0.5 percent of Zn; the rest is tin. The solder has a higher reliability; the solidifying segregation of the element Bi is remarkably restrained; the tissues of the welding points are uniform and thin; no pure-Bi layers appear on a welding interface; the IMC (compound between metals) stability of the interface is improved; the interface has excellent technique property, mechanical property and using reliability. The tin-bismuth-copper series lead-free solder can be widely applied to the low-temperature encapsulation occasion and the multilevel encapsulation occasion of an electric product.

A heat-resistant aluminum alloy material with high strength and preparation method thereof are provided. The aluminum alloy material comprises (by weight %): Cu: 1.0˜10.0, Mn: 0.05˜1.5, Cd: 0.01˜0.5, Ti: 0.01˜0.5%, B: 0.01˜0.2 or C: 0.0001˜0.15, Zr: 0.01˜1.0, R: 0.001˜3 or (R₁+R₂): 0.001˜3, RE: 0.05˜5, and balance Al:, wherein, R, R₁, and R₂ include Be, Co, Cr, Li, Mo, Nb, Ni, W. The Al alloy has the advantages of narrow quasi-solid phases temperature range of alloys, low hot cracking liability during casting improved high temperature strength and high heat resistance.

An oxide sintered body including an indium element (In), a gallium element (Ga), a zinc element (Zn) and a tin element (Sn), and including a compound shown by Ga₂In₆Sn₂O₁₆ or (Ga,In)₂O₃.

The invention provides a method for preparing a carbon-wrapped iron-cobalt nano composite material with broad band and strong absorption. The composite material is prepared by adopting the technology that plasmas is generated by arc discharge of a negative electrode and a positive electrode under working gas, wherein the working gas is argon gas, simultaneously organic substances which can provide carbon elements and do not introduce impurities except C, H and O are added, the negative electrode is made of metals with high melting point and volatile difficulty such as tungsten and the like, and a target material for the positive electrode is iron-cobalt alloy, wherein the iron element accounts for 10 to 90 percent of alloy atomic. The carbon-wrapped iron-cobalt nano wave-absorbing material prepared by the method is a nano capsule formed by wrapping carbon outside the nano-scale iron-cobalt alloy; on one hand, a carbon shell layer is used as an oxidation resistant layer to increase the stability of a nano compound; and on the other hand, the carbon shell layer is used as a dielectric material and compounded with a magnetic iron-cobalt inner core so that the wave-absorbing property of the wave-absorbing material is superior to most classical ferrite and other most nano compound wave-absorbing materials.

The invention provides a nickel-chromium-cobalt-molybdenum heat resisting alloy and a pipe manufacturing process thereof and belongs to the technical field of the heat-resisting alloys. The alloy comprises the following chemical components in percentage by weight: 21-23% of Cr, 0.05%-0.07% of C, less than or equal to 0.3% of Mn, 11-13% of Co, 6.0-9.0% of Mo, 0.3-0.5% of Ti, 0.8-1.3% of Al, 0.1-1.0% of W, 0.002-0.005% of B, 0.03-0.15% of Zr, 0.2-0.6% of Nb+V and 0.01-0.05% of Nb, less than or equal to 0.15% of Cu, less than 0.008% of P, less than 0.002% of S, less than or equal to 0.015% of N, 0.005-0.02% of Mg, less than or equal to 0.01% of Ca, less than or equal to 0.01% of As, less than or equal to 0.07% of Pb, less than or equal to 0.001% of Bi and the balance of nickel and inevitable impurity elements. The nickel-chromium-cobalt-molybdenum heat resisting alloy has the advantages that the room-temperature mechanical properties, the high-temperature mechanical properties, the low cycle fatigue properties and the durability of a large-diameter thick-wall boiler pipe produced from the nickel-chromium-cobalt-molybdenum heat resisting alloy are all over ASME standard requirements and the technical requirements of CCA617 alloys; the formulation of HAZ liquation cracks and stress relaxation cracks is greatly reduced, and the HAZ long term rupture strength and the tenacity after long term aging both are excellent.

The invention discloses a powder metallurgy rare-earth copper-clad iron alloy oil-impregnated bearing and a manufacturing method thereof. Accounted by percentage, the bearing consists of the following compositions by percentage: 18 to 22 percent of Cu, 0.2 to 1.0 percent of graphite, 0.3 to 0.8 percent of La or Ce and the residual quantity of Fe and unavoidable impurities. The bearing is made by the procedures of mixing, low temperature diffusion treatment, pressing, sintering and the like of a mixture formed by copper-clad iron powder, powder of the element La or Ce and the residual quantity of Fe and unavoidable impurities according to certain mixture ratios. The bearing uses the iron powder for substituting most of the copper powder to reduce the manufacturing cost; lead is not contained in the bearing, which meets the requirement of environmental protection; the rare earth is adopted as a catalyst for causing the copper-clad iron powder to be easily combined with other powder, and the alloy is uniformly distributed, which is beneficial for the refinement of alloy grains and leads thin through holes to be formed in the sintering body with hole connection efficiency being more than 95 percent. The mechanical property of the bearing is better than technical standards of oil-impregnated bearings sintered by copper-clad iron powder and 6-6-3 bronze powder.

The invention relates to chemically tempered antimicrobial boroaluminosilicate glass free of color change. The boroaluminosilicate glass is characterized in that the content of B2O3 can meet the following relational expression as shown in the specification, wherein M2O is the sum of content of all monovalent metal oxides in the glass; MO is the sum of content of all divalent metal oxides in the glass; RO is the sum of all multivalent element oxides with potential reducing capacity in the glass; all content in the formula is based on mole percents of oxides; and the content of RO is based on the mole percents of the oxide with the highest cation valence. The glass can be tempered in a salt bath containing 0-5wt% of silver nitrate, so that high strength and excellent antibacterial property are obtained in one step; and high transmittance and colorless features are kept. The glass can be used as protecting glass of touch screens of mobile phones or other electronic equipment, can also be used as surfaces of any high-strength, scratch-resistant, transparent and antimicrobial equipment and apparatuses, which are frequently touched by people in hospitals and communal facilities, or even the surfaces of buildings.