Super Material Airloy , The Strongest Gel!

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Image
The most versatile material in the world may be here, and it's going to change everything. Aerogels have been around for a while, but new innovations have made the technology even better and more useful. An aerogel is a low-density solid created through the extraction of liquid from the gel using the process of  supercritical drying . Most commonly, aerogels are made of silica, yet this material makes the super-light solid incredibly brittle. After years of research, scientists from NASA and other independent companies have created a new product,  airloy . Airloys are a new class of advanced engineering materials that combine the strength of conventional plastics with the low density and superinsulating properties of aerogels.  Airloys are  strong, stiff, and tough  and are among the world’s best  thermal and acoustic insulators .  Like classic aerogels, airloys exhibit  ultra high internal surface area  and can be  electrical...
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Microwave Pretreatment

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MICROWAVE PRE-TREATMENT TEST
A new pre-treatment technology for the removal of volatile components in the fines based on microwave heating is investigated. Microwave energy is a non-ionising electromagnetic radiation with frequencies in the range of 300 MHz to 300 GHz. Microwave heating is fundamentally different from conventional
heating because microwaves take the form of electromagnetic energy and can penetrate deep into the sample. This allows sample heating to be initiated volumetrically, as opposed to conventional thermal processing, which heats the sample from the outside inward via standard heat transfer mechanisms,
i.e., through convection, conduction, and radiation. Compared with conventional heating techniques, the main
advantages of microwave heating are: non-contact heating, energy transfer rather than heat transfer, saving energy, rapid
heating, material selective heating and volumetric heating .Microwave pre-treatment is applied on the fines with high
amount of zinc oxides or alkali metals to reduce their amount to acceptable levels. The results from the microwave treated
fines will in future be compared to the results from removing volatile components with conventional thermal treatment. The aim is to produce raw materials with acceptable levels suitable
for agglomeration and briquette production. The requirements
for the raw materials used in agglomerate production are compared to characteristics of the available raw materials. The effect of microwave heating parameters (microwave power
intensity, and exposure time, etc.) on the processing of wastes is studied on laboratory scale tests. The material treated in laboratory tests will be used in the lab-scale production of bricks.
RESULTS OF MICROWAVE PRE-TREATMENT TEST
The temperature over time profiles at a microwave power of 1000 W are shown in the graph below. The tests indicate that EAF dust, combustion chamber dust and water treatment sludge are excellent microwave absorbing materials. The high microwave absorbing properties of EAF dust, combustion chamber dust and water treatment sludge can be attributed to the contents of carbon and iron oxides, which are classified as excellent microwave absorbers. For example, when combustion
chamber dust was heated in the microwave furnace at 1000 W for 5 minutes, the temperature of the EAF combustion chamber dust reached 850°C, the temperature of the EAF dust was
630°C and the sample of water treatment sludge under the same conditions was 723°C . The measured sample temperature increases with increasing microwave heating time.The temperature increased very rapidly at first and thereafter increased slowly.

Comments

  1. JezebelMarch 25, 2021 at 8:13 AM

    are any of these words referring to food at all, or is this for microwaving something else?

    ReplyDelete
    Replies
    1. Komal PandyaMarch 25, 2021 at 8:28 AM

      No!! This is a treatment to heat metals to high temperature without using fire ! But the concept is same as that of the microwave which we use.

      Delete

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