Digital High Vacuum Accessories - Bell Jars & Evaporation Equipment

Modular unit fits any vacuum evaporator. Easily installed or removed in seconds. No time lost assembling or disassembling filament posts, arms or tungsten baskets. Adjustable height allows basket to be positioned at optimum level for evaporation of metals. Two insulated posts firmly mounted in heavy base. Moveable arms extending from each post have clamps for basket leads, with thumb screws to hold the tungsten basket securely in position. Please specify evaporator model used when ordering. Includes package of Tungsten Baskets. Two sets of posts which will hold two baskets or crucibles to allow you to do more without breaking vacuum. Learn More

Modular unit fits any vacuum evaporator. Easily installed or removed in seconds. No time lost assembling or disassembling filament posts, arms or tungsten baskets. Adjustable height allows basket to be positioned at optimum level for evaporation of metals. Two insulated posts firmly mounted in heavy base. Moveable arms extending from each post have clamps for basket leads, with thumb screws to hold the tungsten basket securely in position. Please specify evaporator model used when ordering. Includes package of Tungsten Baskets. Two sets of posts which will hold two baskets or crucibles to allow you to do more without breaking vacuum. Same as Dual Source Tungsten Basket / Crucible Holder, but with two shields to avoid cross contamination.

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The alumina ceramic coated tungsten evaporation basket is an internally heated crucible that is designed to provide the means for vacuum evaporation of a number of various metals, and at the same time provide a more useful crucible life with these type metals.

Providing strongly upward evaporation in the deposition profile, these tungsten/alumina crucibles maintain molten metal evaporants as an induction propelled spinning ball inside the cavity. Most materials can be completely evaporated without loss to the chamber. Recommended evaporant materials are nickel, iron, or their alloys, as well as a broad range of other metals, such as gold, tin, indium and silver. Other materials which can be evaporated include antimony, bismuth, cadmium, cobalt, copper, lead, manganese, palladium, zinc and alloys such as nichrome and permalloy.

Please view the table at the bottom of this page for technical specifications for each tungsten / alumina crucible.

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A shield greatly reduces deposits of evaporated metals on the electrodes and bell jar, yet allows clear observation of the amount on the specimen. Special features of each unit are:

• Two side arms which fit filament posts, each supporting a chrome-plated disc. 
• An annealed Pyrex tube which slides over the discs and is held securely in place by a coiled spring. 
• A precisely sized slot in the tube, which aligns accurately with a hole in the metal shield held in place beneath the slot, allowing controlled passage of evaporated metal to specimens. 
• Pyrex tube and metal shield can be rotated, permitting coating or shadowing from any angle. 
• Pyrex tubing will not crack from heat generated during evaporation. 

Complete instructions included with each unit.

The Replacement Tube is Annealed Pyrex. Extra tubes are helpful, since one can be in use while others are being cleaned. All edges are fire polished.

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Holds metal boats securely while firing molybdenum apertures under vacuum for cleaning. Also used to hold boats containing powdery material being evaporated in vacuum. Consists of two sturdy insulated supports mounted firmly in heavy nickel-plated base. Boats left in this holder will last through many firings. Comes with package of Tungsten Boats Learn More

Made from top quality, 1 mil thick foil. Used to hold molybdenum apertures during firing in vacuum for cleaning. Overall Length, Flat bottom Length, Width, Depth Other metal boats available on request. Learn More

Used to hold powdery material during evaporation. Overall Length, Flat bottom Length, Width, Depth Other metal boats available on request. Learn More

Designed specifically for use in scanning electron microscopy. Consists of a heavy nickel plated brass base with securely positioned two sets of upright posts. One set of posts has an extension attachment to hold a carbon evaporation source and the other set holds tungsten basket for metal evaporation. Both sources are shielded by a single annealed Pyrex tube with a carefully proportioned slot in the bottom to enable evaporated material to flow to the specimen. Carbon and metal can be evaporated during a single pump-down. Keeps bell jar clean to allow accurate observation of entire process, and saves clean up time. Learn More

A necessary accessory for the Ladd Vacuum Evaporator if you intend to do low temperature work requiring a thermocouple feed-through. The feed through is factory-installed, therefore should be ordered with evaporator. Learn More