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Ammonium Metatungstate: An Orderly Miracle of the Microscopic World 45

In the vast universe of materials science, ammonium metatungstate (AMT) shines like a unique and dazzling star, exuding captivating charm. This inorganic compound, with its excellent physicochemical properties, holds a pivotal position in modern industry and cutting-edge scientific research. The outstanding performance of AMT in practical applications underscores the importance of deeply exploring its crystal structure. The crystal structure serves as the “internal code” of AMT, determining its physical and chemical properties while providing critical clues for unlocking its potential…

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Why Is Molybdenum Sheet Chosen as Connectors in Vacuum Furnaces? 32

A vacuum furnace, as a core device for high-temperature heat treatment and material processing in high-vacuum or inert gas environments, relies on the efficient collaboration of its components for stable operation, with connectors serving as an indispensable “link.” Connectors are components that join critical parts within the vacuum furnace, such as heating elements to electrodes and heating elements to the furnace structure. They not only facilitate current transmission and heat conduction but also provide structural fixation and stress buffering. Among…

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Why Is Molybdenum Sheet Chosen as Heating Elements in Vacuum Furnaces? 21

As a typical product of the transition metal molybdenum, molybdenum sheet is a sheet-like material processed from molybdenum metal through rolling, cutting, and other techniques. Beyond its use in electronics and aerospace for manufacturing high-temperature electronic components and sputtering targets, it is also employed to create heating elements in vacuum furnaces. Molybdenum sheet is an ideal material for vacuum furnace heating elements due to its multiple excellent properties: it has a high melting temperature, enabling stable operation in high-temperature environments;…

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Why Is Molybdenum Sheet Chosen as Reflective Screens in Vacuum Furnaces? 28

A vacuum furnace is a device that performs high-temperature heat treatment or material processing in a high-vacuum environment, widely used in applications such as sapphire crystal growth, metal heat treatment, and ceramic sintering. Within the vacuum furnace, the reflective screen is a critical component, designed to reduce heat loss, improve thermal efficiency, and protect the furnace structure. Due to its excellent physical and chemical properties, molybdenum sheet is the preferred material for vacuum furnace reflective screens. Molybdenum has a melting…

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Applications of Molybdenum Sheet in Vacuum Furnaces 25

A vacuum furnace is a device that performs high-temperature heat treatment and material processing in a high-vacuum or inert gas environment. It is widely used in fields such as sapphire crystal growth, metal heat treatment, semiconductor manufacturing, and ceramic sintering. Due to its outstanding physical and chemical properties, molybdenum sheet is the preferred material for key components of vacuum furnaces, particularly in the fabrication of reflective screens, heating elements, and connectors. I. Molybdenum Sheet for Reflective Screens in Vacuum Furnaces…

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Why Is Molybdenum Sheet Chosen as Covers in Sapphire Crystal Growth Furnaces? 16

Molybdenum sheet, with its excellent high-temperature resistance, thermal properties, chemical stability, and processability, is the preferred material for covers in sapphire crystal growth furnaces. The sapphire crystal growth process occurs at extremely high temperatures, often exceeding 2,000°C in common methods like the Kyropoulos or Czochralski processes, where ordinary materials would fail. Molybdenum sheet, with its high melting point, maintains a stable solid structure under such conditions, resisting melting or softening, ensuring the cover’s integrity and functionality during prolonged high-temperature operations.…

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Why Is Molybdenum Sheet Chosen as Reflective Screens in Sapphire Crystal Growth Furnaces? 18

As a critical component of sapphire crystal growth furnaces, the reflective screen plays a key role in thermal management: it concentrates radiant heat from high-temperature sources through high infrared reflectivity, optimizing the temperature field distribution within the furnace and ensuring a stable temperature gradient at the crystal growth interface, while reducing heat loss to enhance thermal efficiency. This demands excellent high-temperature resistance, thermal shock resistance, and chemical stability from the reflective screen to ensure the uniformity and yield of sapphire…

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Applications of Molybdenum Sheet in Sapphire Crystal Growth Furnaces 17

The growth of sapphire crystals requires high temperatures and a clean environment, making molybdenum sheet, with its unique physicochemical properties, an indispensable key material in sapphire crystal growth furnaces. Molybdenum sheet primarily serves three core functions in sapphire growth furnaces—structural support, thermal management, and corrosion resistance—playing a critical role across key furnace components: Structural Support: Molybdenum sheet is used as components for crucible support and structure, ensuring the stability of the crucible during crystal growth. Specifically, molybdenum sheet is processed…

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Powder Metallurgy Production of Molybdenum Sheet 16

Molybdenum sheet is characterized by a high melting point, good thermal stability, strong corrosion resistance, strong oxidation resistance, and excellent thermal and electrical conductivity, making it widely used in high-end fields such as aerospace, semiconductors, and energy chemicals. Powder metallurgy is one of the key processes for producing molybdenum sheet. This method involves using molybdenum metal powder as a raw material, shaping it, and sintering it to manufacture molybdenum sheet. Production Steps of Powder Metallurgy: Preparation of Molybdenum Powder: High-purity…

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What Are the Characteristics of Molybdenum Sheet? 18

Molybdenum sheet is a sheet-like material made from molybdenum metal through processes such as rolling. It is primarily used to produce reflective screens and covers in sapphire crystal growth furnaces, reflective screens, heating elements, and connectors in vacuum furnaces, as well as sputtering targets for plasma coating. It is a critical material in high-end manufacturing. The basic characteristics of molybdenum sheet are as follows: Appearance: Molybdenum sheet is black-brown in color; if alkali-washed, it exhibits a silver-gray metallic luster. Flatness…

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