Launch vehicles for space travel require a lot of fuel, and a lot of fuel storage. Typical rocket propellants such as oxygen, hydrogen and nitrogen can be stored as gases at room temperature, but since gases are relatively low density, storing enough gas propellants for a space launch would ne

The high-pressure compressed air tanks that firefighters carry on their backs when fighting fires have gotten lighter over the years with the use of composite materials, but are still typically heavy, at about 27 kilograms (more than 59 pounds) on average, according to carbon nanotube p

What do you do when the carbon nanotube (CNT) fiber your company was trying to commercialize doesn’t provide the performance needed by your potential customers, which include the U.S. Air Force and Boeing (Chicago, Ill., U.S.)? You pivot, go back to the drawing board, and use your advanced mat

In this article we will discuss about:- 1. Uses of Stones 2. Natural Bed of Stones 3. Dressing 4. Deterioration 5. Retardation 6. Preservation 7. Artificial Stones. Uses of Stones: The stones are used in the construction of buildings from the ancient times and most of the ancient temples and for

The following tests are conducted for determining the qualities of a good building stone! (1) Acid test (2) Attrition test (3) Crushing test (4) Crystallisation test (5) Freezing and thawing test (6) Hardness test (7) Impact test (8) Microscopic test (9) Smith’s test (10

Following are the qualities or characteristics or requirements properties of a good building stone: 1. Crushing Strength: For a good structural stone, the crushing strength should be greater than 100 N/mm3. The approximate values of crushing strength of some of the stones are shown in table 2-1

In this article we will discuss about: 1. General Properties of Engineering Materials 2. Physical Properties of Engineering Materials 3. Mechanical Properties. General Properties of Engineering Materials: The economists mainly concerned with the industries manufacturing engineering material

The upcoming discussion will update you about the difference between fat lime and hydraulic lime. There are mainly two varieties of limes, namely, fat lime and hydraulic lime. Difference # Fat Lime: 1. Composition: It is obtained from comparatively pure carbonate of lime containing only 5

The use of lime as a cementing material has been made since ancient times. The Egyptians and Romans made remarkable application of this material for various constructional purposes. Even in India, the various engineering structures such as big palaces, bridges, temples, forts, monuments, etc. were

Learn about the comparison or differences between clamp-burning and kiln burning of bricks. Comparison # Clamp-Burning: 1. Capacity: About 20000 to 100000 bricks can be prepared at a time. 2. Cost of Fuel: Low as grass, cow dung, litter, etc. may be used. 3. Initial Cost: Very low as

Substitutes or Alternatives of Bricks used for Construction in India! According to one study, our country needs about 60 billion bricks every year and if no suitable substitute is found out, this would exhaust about 1600 x 106 kN of clay fields or other agricultural land annually. It will thus

We have given a brief description and analysis of each of the various basic forming operations. It is hoped that the reader has by now acquired some idea about these processes, especially about the mechanics involved. However, there are many minor and major variations of such processes. In this ar

This article throws light upon the types of machining process. The types are:- 1. Shaping and Planning 2. Turning and Boring 3. Drilling and 4. Milling. It is necessary to have some exposure to the actual machining operations and their analyses. In this article, we shall not go into the extreme

Hexcel and HP Composites have joined forces to produce high‑grade Class A carbon‑fiber body panels for supercars such as Alfa Romeo’s Giulia GTA and GTAm sedans.With five production plants across Italy, HP Composites has a proven track record of delivering high‑performance composites for both road a

Japan’s Teijin, through its U.S. subsidiary Renegade Materials Corp., a leading supplier of heat‑resistant thermoset prepregs, resins, and adhesives, will expand its prepreg production by roughly 2.5 times. The upgrade aligns with Renegade’s capacity expansion strategy at its Miamisburg, Ohio facili

The Jetson One offers a realistic taste of electric flight, even if its airtime falls short of the 1960s cartoon’s endless adventures. For pilots weighing under 210 lb, the vehicle—priced at $92,000—provides an affordable entry point into personal aviation. It sold out its entire 12‑unit 2022 run an

Vision Composite Products Launches Lightweight Carbon‑Fiber Wheels Using Ultrium U660 In the high‑performance automotive sector, weight reduction and structural integrity are key to future wheel design. Vision Composite Products, a specialist in off‑road, racing, and aftermarket wheels, has taken a

Tomorrow is Veterans Day in the United States, a holiday that began as Armistice Day to honor the World War I fallen. That era also introduced modern camouflage, with the French Army establishing the first dedicated unit in 1915, as noted by the British Imperial War Museums website. Over the decades

A Japanese company, Unitika, has unveiled a new grade of polyamide 6 that is reinforced with cellulose nanofibers (CNFs). This plant‑derived reinforcement offers a fully recyclable solution for the automotive, home‑appliance, and outdoor‑gear sectors. According to Unitika, the material can be recycl

Solvay has teamed up with 9T Labs to accelerate the transition of additively manufactured carbon‑fiber reinforced plastic (CFRP) components into mass production. The collaboration brings 9T Labs’ cutting‑edge hybrid manufacturing platform to the aerospace, medical, luxury/leisure, automation, and oi