Abstract: A gas detector gas that fuse both the function of an oxygen sensor and the function of a lean air fuel ratio sensor, includes a cover layer, a gas diffusion resistance layer, a buffer, a partitioning layer, a solid electrolyte layer, an air passage layer, and a heating layer stacked in sequence. First and second electrodes are respectively provided on opposite first and second surfaces of the solid electrolyte layer. The partitioning layer includes a slot facing the gas diffusion resistance layer and the first electrode. The air passage layer includes an air passage accessible to the second electrode. The buffer is received in the slot of the partitioning layer. The gas diffusion resistance layer includes outer edges exposed to exhaust gas to be tested. The exhaust gas to be tested enters the gas detector via the outer edges of the gas diffusion resistance layer and reaches a surface of the first electrode of the solid electrolyte layer via the buffer.

Abstract: A process for producing a lithium-containing alloy material is described. The process supplies a light alloy material applicable to the design of lightweight structural components. The process includes first melting alloy materials at a required ratio into a homogeneous alloy melt, then pouring the alloy melt into a ladle protected with an inert gas and pre-filled with a lithium material, where the lithium material is vigorously flushed and mixed with a hot stream of the alloy melt, and diffused into the alloy melt, and then after uniformly mixing, pouring the lithium-containing alloy melt into a mold to form an ingot and produce a lithium alloy. The process solves the fundamental problems of both contamination and uncontrolled component caused by longtime overheat in traditional melting techniques, and is a novel, safe, economic, and efficient manufacture process.