Brittle material joints with dynamic sealing

A joint structure comprising:

• a first component and a second component aligned in a first direction, a first end of the first component being opposed to a first end of the second component, wherein the first end of the first component has a chamfered edge between a front surface perpendicular the first direction and an external surface along the first direction, the chamfered edge of the first end of the first component having an angle between 30 degrees and 60 degrees with respect to the first direction;
• a packing shell positioned around the first end of the first component and the first end of the second component such that the first component is inserted into the packing shell from the first end and the second component is inserted into the packing shell from the first end, wherein:
• the first component, the second component, and the packing shell are made of a first graphite material, and
• the packing shell has a chamfered edge that is arranged between a front surface perpendicular the first direction and an external surface along the first direction, the chamfered edge of the packing shell being opposed to a first compression flange and having the angle between 30 degrees and 60 degrees with respect to the first direction;
• a first sealing element positioned between the packing shell and the first end of the first component and further extending into the packing shell;
• and
• a second sealing element positioned between the packing shell and the first end of the second component and further extending into the packing shell.

A method of forming a joint structure, the method comprising:

• arranging a first sealing element around a first end of a first component and a second sealing element around a first end of a second component;
• inserting (i) the first sealing element and the first end of the first component into a packing shell from a first open end of the packing shell and (ii) the second sealing element and the first end of the second component into the packing shell from a second open end of the packing shell,
• the first component, the second component, and the packing shell being made of a first graphite material,
• the packing shell being positioned around the first end of the first component and the first end of the second component, the first end of the first component being opposed to the first end of the second component,
• the first component and the second component being aligned in a first direction, the first sealing element being positioned between the packing shell and the first end of the first component and further extending into the packing shell, and
• the second sealing element being positioned between the packing shell and the first end of the second component and further extending into the packing shell;
• arranging a first compression ring around the first end of the first component, a first end of the first compression ring being (i) adjacent to the first sealing element and (ii) positioned between the first end of the first component and the packing shell;
• arranging a second compression ring around the first end of the second component, a first end of the second compression ring being (i) adjacent to the second sealing element and (ii) positioned between the first end of the second component and the packing shell;
• arranging a first compression flange adjacent to a second end of the first compression ring and around the first end of the first component;
• and
• arranging a second compression flange adjacent to a second end of the second compression ring and around the first end of the second component,
• arranging a first split flange adjacent to the first compression flange and around the first end of the first component, the first split flange including a first portion and a second portion and further being arranged in a first recessed region of the first component;
• and
• arranging a second split flange adjacent to the second compression flange and around the first end of the second component, the second split flange including a third portion and a fourth portion and further being arranged in a second recessed region of the second component.